What is always true about quadrilaterals

 

for a… Q: Only isosceles trapezoids have two pairs of consecutive angles that are supplementary. A square is not a trapezoid, but it is a rectangle and a parallelogram. By definition, a rectangle is a polygon that has four sides and four right angles. Q: One pair of parallel sides proves a quadrilateral to be a parallelogram O True O False A: The quadrilateral with one pair of parallel sides is a trapezoid, not a parallelogram. By the Rhombus Corollary, the quadrilateral is a rhombus. SIDES: One pair of opposite sides are parallel. Which of the following statements is always true? F A trapezoid is also a What seems to always be true about a quadrilateral? (Fill in the blanks below. Explanation: A trapezoid is defined as a four-sided polygon, also known as a quadrilateral, that has at least one pair of parallel sides. A distance along a line must have no beginning or end. Chamberlain's students are discussing the following quadrilaterals and their diagonals. Never. The video dives into the world of quadrilaterals, specifically focusing on kites. A plane consists of an infinite set of points. Quadrilaterals with every vertex on a circle and opposite angles that are supplementary. Relationships in triangles and quadrilaterals This is always true. you can make a quadrilateral with three right angles pretty A side note: Only in a triangle is a polygon regular solely if it is equilateral. Other quadrilaterals are comets and trapezoids. 4 5. It is a type of polygon having four sides (also called quadrilateral), where the pair of parallel sides are equal in length. A point has one dimension, length. This quadrilateral could be 1) a square 2) a rhombus 3) a rectangle 4) an isosceles trapezoid 20 Given three distinct quadrilaterals, a square, a Example 3: State true or false with respect to the characteristics of a kite. There are several types of quadrilaterals; among them, we have parallelograms, which are a series of figures that share common properties such as squares, rhombuses, rectangles, and rhomboids. SOLUTION The quadrilateral has four congruent sides. This is always true. In the previous course we showed that midsegments of a triangle are always parallel to its base. Complete the statement using always, sometimes, or never. Prove parallelogram properties. the diagonals intersect at right angles. True False. Question: Answer the question below by clicking on the correct response. Length is the longer side of a rectangle, while width is the shorter side of the rectangle. Apr 28, 2022 · There are several facts about all parallelograms:the sum of the interior angles is 360˚ (true for all quadrilaterals)opposite angles are congruent (angles that are diagonal in parallelograms have the same measure)consecutive angles are supplementary (angles that are connected by a single side add up to 180˚)If you know any of the The diagonal splits the quadrilateral into two triangles. A quadrilateral can sometimes be called: A quadrilateral contains various properties such as a quadrilateral has four vertices and four sides along with four angles. 8. Now that you know the different types, you can play with the Interactive Quadrilaterals. Quadrilateral are the polygons which are four-sided or with four angles i. Sep 12, 2017 · This statement is always true. All squares are rectangles (But not every rectangle is a square) C. This quadrilateral has 4 sides. There are some additional ways to prove parallelograms are rectangles and rhombuses, shown below: 1. ) The sum of the interior angles of a kite is equal to 360°. All rectangles are parallelograms. Create a variety of quadrilaterals. Since figures with four sides are quadrilaterals, and a square is a figure with four sides, a square is a Nov 24, 2020 · The statements b,c, and e about quadrilaterals are true. $2$ and $4$ are even numbers, but their sum is $6$, which is not odd. A square is a quadrilateral for which all sides have the same length and where adjacent sides are perpendicular to each other. All rhombuses have opposite sides parallel. All rhombuses are parallelograms, but not all parallelograms are rhombuses. Â A triangle is a three-sided figure. Answer and Explanation: 1 Which quadrilaterals always have diagonals that bisect opposite angles? (Select all that apply. Simple quadrilaterals are either convex or concave. 16 Which quadrilateral has diagonals that always bisect its angles and also bisect each other?-— rhombus 2) rectangle 3) parallelogram 4) isosceles trapezoid 17 The diagonals of a quadrilateral are congruent but do not bisect each other. Figure 5. What is a quadrilateral? A quadrilateral is a closed, two-dimensional shape which has four straight sides. Start test. The sum of the interior angles is 360 degrees. a. Let us learn more about the three special parallelograms: rhombus, square, and rectangle along with their Apr 28, 2017 · Which statements are true regarding undefinable terms in geometry? Select two options. ANGLES: Sum of the angles is 360°. In fact it is a 4-sided polygon, just like a triangle is a 3-sided polygon, a pentagon is a 5-sided polygon, and so on. Rhombus diagonals. A rhombus is a quadrilateral with four equal-length sides and opposite sides parallel to each other. trapezoid. However, for a square, all its sides are the same length! Now, a rectangle can have sides of different lengths, as long as the opposite sides are equal. sometimes. Multiple Choice. (Select all that apply. Jul 18, 2023 · The main shapes are square, rectangle, rhombus, kite, parallelogram, and trapezoid. Find angles in isosceles triangles. 3. False. It is a special case of a parallelogram, whose all sides are equal and diagonals intersect each other at 90 degrees. Test your understanding of Congruence with these NaN questions. Quadrilaterals having four right angles are referred to be rectangles. Yes that is true. What is the contrapositive of the statement "If a quadrilateral has four congruent sides, then it is a rhombus"? a. Finally, see examples of quadrilaterals in the real world. Kites as a geometric shape. All quadrilaterals are rhombuses, so they have opposite sides parallel D. A square is a "special case" Rhombus. THEOREM 4-14. ) A square is always a rhombus. This statement is always true. Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Quadrilaterals: A quadrilateral is a polygon with four sides. This quadrilateral also has 2 pairs of parallel sides. It is a two-dimensional figure having four sides (or edges) and four vertices. Unit test. The sum of the interior angles of any quadrilateral is always 360 degrees. They are all four-sided polygons. Which quadrilaterals listed have all congruent sides? -> Rhombus and square. In geometry, a quadrilateral is a two-dimensional closed shape or polygon that has four straight sides, four corners or vertices, and four interior angles. 4) The diagonals bisect their respective angles. Because one of the angles is not a right angle, the rhombus cannot be a square. A quadrilateral is a mathematical name for a four-sided polygon. By a rectangle’s definition, opposite sides must be equal and parallel to each other. Answer and Nov 3, 2020 · Quadrilaterals are polygons that have four sides. Parallelograms are quadrilaterals with two sets of parallel sides. Learn about quadrilaterals, a type of polygon. ) * Parallelograms Rectangles Rhombi Squares. ) A rectangle is always a square. Explain your reasoning. A quadrilateral is defined as a two-dimensional shape with four sides, four vertices, and four angles. A scalene quadrilateral is a four-sided polygon that has no congruent sides. Considering this definition, the word that makes the sentence true is. Quadrilaterals quiz for 7th grade students. Jan 25, 2014 · Always, Sometimes, Never – Quadrilaterals. An inscribed polygon is a polygon where every vertex is on the circle, as shown below. ) Which statement is always true a quadrilateral is a trapezoid? This is always true. ) Square and Rectangle D. A quadrilateral with two sets of parallel sides, 4 right angles, and 4 congruent (equal) sides is a _____. C. A rectangle is ____________ a square. So, a quadrilateral is a polygon of four sides, four vertices and four angles. B A quadrilateral has 4 angles. This statement is true by appealing to definitions. Since squares must be quadrilaterals with two sets of parallel sides, then all squares are parallelograms. Use the Gizmo protractor to Quadrilaterals have the following properties: four sides, two diagonals, four internal angles (or vertices), the interior angles add up to 360°. All quadrilaterals have two diagonals. For example, if the diagonals of a quadrilateral are equal and they bisect each other at right angles, then the quadrilateral is necessarily a square. (But not all rhombuses are squares) B. (Never True) A parallelogram with at least one right angle is a rectangle. Parallelogram: A parallelogram is a quadrilateral with two pairs of parallel sides. The second statement is always false, but it is only necessary to find one counterexample. (Sometimes True) An isosceles trapezoid has perpendicular diagonals. Attach the “donuts” to points, as shown to the right. Apr 28, 2020 · Learn how to use a quadrilateral diagram to help you determine whether different quadrilaterals always, sometimes, or never share attributes. There are two main types: concave and convex. 3) The diagonals are perpendicular. Sometimes. Diagonals bisect vertex angles. Oct 15, 2015 · Out of the four options given, the statements which are true about quadrilaterals are as follows: A. . 15: Inscribed Quadrilaterals in Circles. Statement: A quadrilateral is a polygon. Drag the points! The red quadrilateral is a rectangle, the blue a rhombus, the green a parallelogram ,the yellow a trapezium, and the orange small quadrilateral is a square. Â Trapezoids must have 4 sides, so they must always be quadrilaterals. Scroll down the page for more examples on the properties of a quadrilaterals. Almost any polygon with four sides is a quadrilateral. It is pertinent to note that diagonals of quadrilaterals provide valuable insights as to the type of quadrilateral. at the same time, it does nothing to prohibit the existence of squares or rect-angles either. This quadrilateral IS an isosceles trapezoid 2) a parallelogram 3) a rectangle 4) a rhombus Nov 28, 2020 · You can always show that a parallelogram is a rectangle, rhombus, or square by using the definitions of these shapes. This is NOT always true in other polygons, like quadrilaterals, where it can be equilateral but not necessarily equiangular (a rhombus) or equiangular but not equilateral (a rectangle). Justify constructions. There are also various subcategories of convex quadrilaterals, such as trapezoids, parallelograms, rectangles, rhombi, and squares. the diagonals bisect each other. The rectangle and rhombus are not a square. A parallelogram is always a rectangle is. Answer and Explanation: 1 18 Which quadrilateral has diagonals that are always perpendicular? 1) rectangle 2) rhombus 3) trapezoid 4) parallelogram 19 A quadrilateral has diagonals that are perpendicular but not congruent. Classify figures by coordinates. Â A parallelogram is a four-sided figure with two sets of parallel sides. It explores how kites are defined by two pairs of adjacent, congruent sides. However, some quadrilaterals have their sides and angles in equal measures. C A quadrilateral has straight sides. The following diagram shows the properties of some quadrilaterals: square, rectangle, parallelogram, trapezoid, rhombus, kite. square. A quadrilateral with both pairs of opposite sides parallel. The two dimensions of a rectangle are length and width. ) The two diagonals are not of the same length. Jan 14, 2023 · A quadrilateral is a mathematical name for a four-sided polygon. Jan 6, 2024 · All quadrilaterals have four angles. Learn what it means for two figures to be congruent, and how to determine whether two figures are congruent or not. All of the example shapes in the article (such as squares, rhombuses, etc. All rhombuses are quadrilaterals, so they have four sides. Q: What is always true about quadrilaterals? Write your answer Apr 28, 2022 · Best Answer. Jun 5, 2018 · The true statements are: Rhombuses are quadrilaterals. Which statement is always true? 1) AN = 1 2 AD 2) AS = 1 2 AD 3) ∠AHS ≅∠ANS 4) ∠HDS ≅∠NDS 6 Which statement about parallelograms is always true? 1) The diagonals are congruent. A parallelogram is a two-dimensional geometrical shape whose sides are parallel to each other. Jan 22, 2017 · Which statements are true regarding undefinable terms in geometry? Select two options. Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. Ms. Study with Quizlet and memorize flashcards containing terms like True, False, True and more. It also highlights that the diagonals of a kite intersect at a 90-degree angle, with one line bisecting the other. Use this immensely important concept to prove various geometric theorems about triangles and parallelograms. You could cut out the statement cards and arrange them in this grid. These quadrilaterals earn their distinction based on their properties, including the number of pairs of parallel sides they have and their angle and side measurements. The sum of all angles of a quadrilateral is always 360 Aug 24, 2023 · Like a square, a rectangle is a two-dimensional (or flat) shape with four sides and four right angles. Parallel & perpendicular lines from graph. A. The shape of a rhombus is in a diamond shape. Solution: a. To find the perimeter of a quadrilateral, we need to add all its sides together. Parallelograms are quadrilaterals with Oct 10, 2023 · This isn't true- they can be paralleograms and trapezoids. A quadrilateral is a polygon with four sides four angles and four vertices. A quadrilateral can be concave or convex. It is a quadrilateral that has 2 pairs of equal-length sides and these sides are adjacent to each other. convex. Squares:A square is a regular quadrilateral, which means that it has 4 equal sides and 4 equal angles. SIDES: One pair of opposite sides are congruent. In Euclidean geometry, a rhombus is a type of quadrilateral. Only the degrees on the angles change. They Nov 28, 2020 · 6. Relationships in triangles and quadrilaterals: Quiz 1. 14 hours ago · B. A quadrilateral is a polygon. A square is a parallelogram. Opposite sides are perpendicular. Next, we have to think about whether it is a parallelogram. Learn about it here. A parallelogram is a quadrilateral in which the opposite sides are parallel and equal, and the opposite angles are of equal measure. b. The opposite sides are the same length, as shown by the tick marks. Which quadrilaterals always have diagonals that bisect opposite angles? (Select all that apply. ; A quadrilateral is a polygon with four sides. Relationships in triangles and quadrilaterals: Quiz 2. What is true about opposite sides of a parallelogram? Choose all that apply. In Euclidean geometry, a parallelogram is a simple (non- self-intersecting) quadrilateral with two pairs of parallel sides. One of my “go to” questions for students when they are working through math in my classroom is, “Will that always be true?”. Created by Sal Khan. Quadrilaterals only have one side more than triangles, but this opens up an entire new world with a huge variety of quadrilateral types. Rhombus is more specific because rhombi are a subset of parallelograms, meaning all rhombi are parallelograms, but not all parallelograms are rhombi. For inscribed quadrilaterals in particular, the opposite angles will always be supplementary. A circle is the locus of all points in a plane which are equidistant from a This is never true. Step-by-step explanation: We have to determine: if the statement is always, sometimes or never true. (Since an equilateral triangle is equiangular as well). Angles. The statements about quadrilaterals are true; b. A quadrilateral just means that something had four sides. Three examples are shown below. You can select Show angle measure tool to open a Gizmo protractor, and Show ruler to open a Gizmo ruler. (Always True) A quadrilateral with perpendicular diagonals is a kite. The internal angle degrees of a quadrilateral may or may not be 90 degrees. If a diagonal is drawn in a parallelogram, then two congruent triangles are formed. A rhombus is a type of parallelogram, and what distinguishes its shape is that all four of its sides are congruent. In other word, a quadrilateral is a plane figure that has four sides or edges, and also has four corners or vertices. Explore the different types of quadrilaterals, including squares and rectangles. Parallelograms, squares, rectangles, and trapezoids are all examples of quadrilaterals. ) True, the sum of the interior angles of a kite is equal to 360°. Check lines of symmetry in a rhombus. The origin of the word "quadrilateral" is the two Latin words quadri, a variant of four, and latus, meaning "side. the diagonals are congruent. A hexagon has six equal length sides. the statement is sometimes true. Which name is most descriptive of the figure shown below? F parallelogram G square rectangle J quadrilateral 4. The following Venn Diagram shows the inclusions and intersections of the various types of quadrilaterals. Apr 22, 2022 · What is true about a quadrilateral? A quadrilateral is a polygon that has exactly four sides. MMonitoring Rectangles:A rectangle is a quadrilateral with 4 right angles. The opposite or facing sides of a parallelogram are of equal length and the opposite angles of a parallelogram are of equal measure. A convex quadrilateral has all its interior angles less than 180 degrees, and a concave quadrilateral has at least one interior angle greater than 180 Diagonals of Quadrilaterals. A parallelogram is a quadrilateral that has two pairs of parallel sides, where in each pair they're opposite sides. Do you know how to classify quadrilaterals based on their properties? Test your knowledge with this interactive flashcard set that covers statements like "A square is a rhombus" or "A rectangle has congruent diagonals". Discover how many sides and vertices make a quadrilateral. Squares have two diagonals that meet at right angles. A line has length and width. (Never True) Please view the preview to see the resources in more detail including all 24 included statements. All squares are rhombuses. Alternatively, you could use these interactivities to organise your thinking: Always. B. In a quadrilateral, the sum of all four angles is equal to 360°. Since a quadrilateral must have four sides in order to qualify, all rectangles satisfy this requirement. 2) The diagonals bisect each other. The opposite interior angles of rhombuses are congruent and the diagonals of a rhombus always bisect each other at right angles. A quadrilateral is a general term for a polygon with four sides. The properties of quadrilaterals include: Every quadrilateral has 4 sides, 4 vertices, and 4 angles. They all have 4 sides. Some points about quadrilaterals to be kept in mind are: Square, rectangle, and rhombus are types of parallelograms. 4. 6. Quadrilateral:A quadrilateral is a polygon with 4 sides and 4 vertices or corners. Apr 11, 2018 · The given statement is true. Squares are a specific type of quadrilateral, but not all quadrilaterals are squares. 7 A quadrilateral must be a Jan 16, 2023 · Rhombus definition. ) True, the two diagonals are not of the same length. If a quadrilateral is a rhombus, then it has four congruent sides. Rhombus is a parallelogram with all equal sides. There are several formulas for the rhombus that have to do with its: Sides (click for more detail) All 4 sides are congruent. True. I find it pushes the thinking to another level where students are looking for examples and/or non-examples. " Quadrilaterals are simple (not self-intersecting) or complex (self-intersecting), also called crossed. The word “quadrilateral” comes from the Latin words Quadrilaterals can be cut into two equal triangles. The lengths of the sides are different, and the angles are of different measures. A quadrilateral is a four-sided closed figure. This is the basic property of rhombus. Parallelograms can be equilateral (with all sides of equal length), equiangular (with all angles of equal measure), or, both equilateral and equiangular. The sum of the interior angles of a quadrilateral is 360 degrees. Determine if the following statement is always true for any parallelogram, if not, provide a counterexample: Consecutive sides are congruent. Learn about the quadrilateral shape, its properties, the types, area of quadrilaterals and some solved examples. There are other types of quadrilaterals, such as rectangles, parallelograms, trapezoids, and rhombuses. A square is a rhombus Parallelogram. four sides, all sides are congruent, four right Kite. Rhombus. Classifying Special Quadrilaterals Classify the special quadrilateral. The congruence of opposite sides and opposite angles is a direct consequence of Examine the properties of the quadrilateral, including side lengths and angle measurement. Learn the definitions and examples of always, sometimes, and never true statements and ace your geometry quiz. SIDES: A pair of adjacent sides are congruent. Opposite sides bisect each other. Squares are parallelograms. EXAMPLE 2 Classifying Special Quadrilaterals Classify the special quadrilateral. Chamberlain asks her students what they notice about the diagonals in the quadrilaterals. Nov 21, 2023 · In a quadrilateral, the sum of all four interior angles is always 360°. ) Square and Trapezoid C. When each of the four interior angles of a quadrilateral are all less than 180°, then the quadrilateral is called a convex Quadrilaterals can be classified by whether or not their sides, angles, diagonals, or vertices have special properties. The word ‘Quadri’ means four and ‘Latus’ means side. What is the most specific name for a quadrilateral with 2 pair of parallel sides? four sides, opposite sides are congruent, opposite angles are congruent, opposite sides are parallel. ) A quadrilateral is a with sides. Finally, concerning option D, diagonals are congruent in a rectangle or a square but not necessarily in every quadrilateral. Line and angle proofs. always Quadrilateral: Quadrilaterals are geometric figures with four sides and four angles. In our daily life we come across a number of objects that are shaped like quadrilaterals, for example, kites, dollar The question asks for us to "be as specific as possible" so while it is a parallelogram, that answer would be wrong. Quadrilaterals quiz for 9th grade students. Diagonals. Find other quizzes for Mathematics and more on Quizizz for free! Quadrilaterals. Two quadrilaterals are similar quadrilaterals when the three corresponding angles are the same ( the fourth angles automatically become the same as the interior angle sum is 360 degrees), and two adjacent sides have equal ratios. The classification schemes taught in elementary school involve the number of pairs of parallel sides, and the congruence of sides, and whether or not all the angles are right angles (all angles are congruent). Which quadrilaterals listed have diagonals that bisect each other? -> Rhombus, rectangle, parallelogram, and kite. the opposite angles are congruent. Hence, it is also called a diamond. 4; The total measure of all the four interior angles of a quadrilateral is always equal to 360 degrees. Opposite sides are congruent. The Sum of adjacent angles of a parallelogram is equal to 180 degrees. Load GeoGebra worksheet. Play with Them. Feb 25, 2022 · A trapezoid is always a quadrilateral, as it is defined by having four sides, with at least one pair of parallel sides. Â Squares are quadrilaterals with 4 congruent sides and 4 right angles, and they also have two sets of parallel sides. The sum of interior angles of a quadrilateral fits the formula of polygon i. And now you can see that two of the sides of the inner quadrilateral are actually midsegments medians perpendicular bisectors of these triangles. quadrangle. What is quadrilateral? A quadrilateral is a closed figure with four sides. Wiki User. A quadrilateral has right angles. A point's location on the coordinate plane is indicated by an ordered pair, (x, y). The word quadrilateral is formed from two latin words, ‘quadri’ and ‘latus’. All quadrilaterals have four sides. a parallelogram with four congruent sides. rhombus. Questions. A square is a rectangle because it meets all the criteria of a rectangle: it has four sides, and all its angles are right angles. May 4, 2021 · The statement about rectangles and rhombuses that is always true is that both figures are quadrilaterals. a quadrilateral with one pair of parallel sides. . One student says, “I noticed that the diagonals of the quadrilaterals always cross at A quadrilateral whose diagonals are congruent is a rectangle. a parallelogram with four right angles and four congruent sides. (This also means that a quadrilateral has exactly four vertices, and exactly four angles. It would be true. So it is definitely a quadrilateral. To show why the diagonals of a rhombus are perpendicular, we can rotate the rhombus to look like a diamond and draw one diagonal as a horizontal line. A square is a rectangle as well as a rhombus. So anything that adds to that, or takes away from it, is therefore false. Apr 28, 2022 · What are false statements about quadrilaterals? Probably the main one is that all quadrilaterals are rectangles. Other Names. Why is a trapezoid a quadrilateral, but a quadrilateral is not always a trapezoid? What is the difference between a trapezoid and a rhombus? Lesson 6: Theorems concerning quadrilateral properties. Quadrilaterals and Their Properties. Some quadrilaterals have four night angles. We have an expert-written solution to this problem! A parallelogram must be a rhombus is its diagonals. A parallelogram is a rectangle if the diagonals are congruent. This isn't true- they can be paralleograms and trapezoids. Which of the following statements is always true? -> A rhombus is a parallelogram. ) A parallelogram is always a quadrilateral. All squares are rectangles. ) Square and Rhombus and more. It also has 4 angles of equal measure, all of which are 90^{\circ} or right angles. 14 hours ago · parallelogram. And in this case, if you look at this side over here, it forms a 90-degree angle with this line. Find other quizzes for Mathematics and more on Quizizz for free! Nov 12, 2023 · For option B, it is only true for specific quadrilaterals like a parallelogram where diagonals do bisect opposite angles. tees you can make a quadrilateral with four right angles– that is, neutral geometry does not guarantee the existence of rectangles or squares. ) are indeed types of quadrilaterals so they all have 4 sides. A trapezoid is a kite. The total of the internal angle measurements is 360°. A trapezoid has only one pair of parallel sides. List the properties of a parallelogram. A quadrilateral whose diagonals are perpendicular bisectors of each other is a rhombus. 5. Then, we can use the fact that the top and bottom triangles are congruent and isosceles to drop altitudes from the vertices to the horizontal diagonal. A quadrilateral is a 4 sided polygon bounded by 4 finite line segments. But if all four sides of a rectangle were the same length, then Find the indicated measure given a trapezoid or kite (Problems #24-27) Identify the quadrilateral given coordinates (Problem #28) Fill in the blank with always, sometimes or never (Problem #29) Complete the two-column (Problem #30) Quadrilaterals made easy! Discover the secrets of these fascinating shapes and unlock your potential in geometry. Opposites sides of a parallel. ∙ 13y ago. It has four edges and four corners. ) square and parallelogram B. No rhombi are rectangles. D. Which of the following statements are always true of parallelograms? It is a quadrilateral, Both pairs of opposite sides are parallel. not always true? A A quadrilateral has 4 sides. Kites are quadrilaterals (always, sometimes or never) Parallelogram. A quadrilateral is any polygon that has 4 sides. 70° 1. Venn Diagram of Quadrilateral Classification. Problem 3E: Classify as true or false: a If the vertex angles of All quadrilaterals are rhombuses, so they have all sides equal. 2. , Which of the following quadrilaterals always have 90 degree angles? A. ) 1. e. Proof: Opposite sides of a parallelogram Which two statements must be true based on the information May 25, 2021 · Isosceles Trapezoids in Summary Check ALL of the statements that are ALWAYS true about ISOSCELES TRAPEZOIDS. 1. The word ‘quadrilateral’ is composed of two Latin words, Quadri meaning ‘four ‘and latus meaning ‘side’. ap bb ly oz jm cz sc fz dt ma