trapezoid proofs worksheet

0000057335 00000 n Trapezoids Sort. In the diagram given above, EFCH is an isosceles trapezoid and DG is the midsegment of the trapezoid. Definition of midpoint 4. Home. Isosceles Trapezoid Theorems If a quadrilateral is an isosceles trapezoid, then each pair of base angles are congruent. We have a great collection of 100% Free Geometry Worksheets with answer keys for use by teachers, students, and homeschool parents. These handouts are ideal for 7th grade and 8th grade students. Two different types with 3 worksheets each A lesson on proving lines parallel, p . You can find questions on calculating the length of a side, as well as the sum of opposite angles. A trapezoid is a quadrilateral with exactly one pair of parallel sides (the parallel sides are called bases). 2. The slopes of BC and AD are not equal. 12. 1. Reflexive property 6. Are your students still tripped up by those tricky trapezoids? In the image, sides, AD and BC are equal. 0.) This math worksheet was created on 2013-04-18 and has been viewed 157 times this week and 534 times this month. The trapezoid pictured above can be subdivided into a rectangle and two right triangles. Area of Trapezoid. How big should the middle layer of the cake be ? 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Definition of Isosceles Trapezoid: A trapezoid in which the base angles and non-parallel sides are congruent Statements overlapping triangles Reasons 1. 0000001601 00000 n A baker is making a cake like the one which is given below. Trapezoids with congruent sides are displayed. Use this worksheet to help students describe and create trapezoid patterns. 0000073308 00000 n Get Free Access See Review. A baker is making a cake like the one which is given below. 43 0 obj << /Linearized 1 /O 45 /H [ 1180 421 ] /L 92911 /E 74985 /N 4 /T 91933 >> endobj xref 43 37 0000000016 00000 n Measurement. Math. 18) Find VU G 6x − 6 F 38 W U V T 7x − 4 24-2-Create your own worksheets like this one with Infinite Geometry. Apart from the stuff given above, if you need any other stuff in math, please use our google custom search here. Use the Trapezoid Midsegment Theorem to fi nd distances. Download FREE Worksheets. 0000003271 00000 n 0000074634 00000 n 0000001087 00000 n ABCD is a trapezoid, AB||CD. 0000070670 00000 n 0000022199 00000 n Kite 3. ��8��rCt��"�9A��h8�4lgtb��`�� @��a��y;�&�7�7��@�]��1��D �0 �LkV endstream endobj 79 0 obj 308 endobj 45 0 obj << /Type /Page /Parent 40 0 R /Resources 46 0 R /Contents 54 0 R /MediaBox [ 0 0 612 792 ] /CropBox [ 0 0 612 792 ] /Rotate 0 >> endobj 46 0 obj << /ProcSet [ /PDF /Text ] /Font << /TT2 51 0 R /TT4 49 0 R /TT6 47 0 R /TT8 55 0 R /TT9 56 0 R /TT10 60 0 R /TT11 61 0 R >> /ExtGState << /GS1 70 0 R >> /ColorSpace << /Cs6 53 0 R >> >> endobj 47 0 obj << /Type /Font /Subtype /TrueType /FirstChar 65 /LastChar 121 /Widths [ 611 611 667 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 500 500 444 0 0 0 0 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 444 444 ] /Encoding /WinAnsiEncoding /BaseFont /AOMKOD+TimesNewRoman,Italic /FontDescriptor 50 0 R >> endobj 48 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 718 /Descent -211 /Flags 32 /FontBBox [ -665 -325 2000 1006 ] /FontName /AOMKOB+Arial /ItalicAngle 0 /StemV 94 /XHeight 515 /FontFile2 65 0 R >> endobj 49 0 obj << /Type /Font /Subtype /TrueType /FirstChar 40 /LastChar 150 /Widths [ 333 333 0 0 278 0 278 0 556 556 556 556 556 0 556 556 556 0 278 0 0 0 0 0 0 667 667 722 722 667 611 778 722 278 500 667 556 833 722 0 667 0 722 667 611 722 0 944 0 0 0 0 0 0 0 0 0 556 556 500 556 556 278 556 556 222 0 500 222 833 556 556 556 556 333 500 278 556 500 722 500 500 500 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 222 0 0 0 556 ] /Encoding /WinAnsiEncoding /BaseFont /AOMKOB+Arial /FontDescriptor 48 0 R >> endobj 50 0 obj << /Type /FontDescriptor /Ascent 891 /CapHeight 0 /Descent -216 /Flags 98 /FontBBox [ -498 -307 1120 1023 ] /FontName /AOMKOD+TimesNewRoman,Italic /ItalicAngle -15 /StemV 0 /XHeight 0 /FontFile2 64 0 R >> endobj 51 0 obj << /Type /Font /Subtype /TrueType /FirstChar 46 /LastChar 146 /Widths [ 278 0 0 556 556 0 0 0 0 0 0 0 333 0 0 0 0 0 0 0 0 0 0 0 611 778 0 0 556 0 0 0 722 0 667 0 0 0 611 0 0 0 0 0 0 0 0 0 0 0 0 556 0 556 611 556 333 611 611 278 0 0 278 889 611 611 0 0 389 556 333 0 0 0 0 556 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 278 ] /Encoding /WinAnsiEncoding /BaseFont /AOMKMP+Arial,Bold /FontDescriptor 52 0 R >> endobj 52 0 obj << /Type /FontDescriptor /Ascent 905 /CapHeight 718 /Descent -211 /Flags 32 /FontBBox [ -628 -376 2000 1010 ] /FontName /AOMKMP+Arial,Bold /ItalicAngle 0 /StemV 133 /FontFile2 63 0 R >> endobj 53 0 obj [ /ICCBased 71 0 R ] endobj 54 0 obj << /Length 1784 /Filter /FlateDecode >> stream 2nd grade. c) 3 2 170 8 0 ³x2dx. Prove that the figure ABCD given below is a trapezoid. Find the length of the angle indicated for each trapezoid. Give your second graders a chance to have fun while they practice trapezoid identification with this cut-and-paste activity. The following figure shows a trapezoid to the left, and an isosceles trapezoid on the right. 0000006187 00000 n Identify quadrilaterals. 1 Coordinate Geometry Proofs Slope: We use slope to show parallel lines and … According to theorem on trapezoids, each pair of base angles in an isosceles trapezoid must be congruent. 0000067270 00000 n It may be printed, downloaded or saved and used in your classroom, home school, or other educational … Right trapezoid: It has a pair of right angles. Definition of Trapezoid and Isosceles Trapezoid A trapezoid is a quadrilateral with exactly one pair of parallel sides. Proofs For Students 8th - 11th. 2. In this geometric proofs worksheet, students prove supplementary, complimentary, and congruent angles from given models and information. %PDF-1.3 %�� Regents Exam Questions G.SRT.B.5: Quadrilateral Proofs Name: _____ www.jmap.org 2 6 The accompanying diagram shows quadrilateral BRON, with diagonals NR and BO, which bisect each other at X. 2 Table of Contents Day 1 : SWBAT: Prove Triangles Congruent using Parallelogram Properties Pages 3 - 8 HW: Pages 9 - 10 Day 2: SWBAT: Prove Quadrilaterals are Parallelograms Pages 11 - 15 HW: pages 16 - 17 Day 3: SWBAT: Prove Triangles Congruent using Special Parallelogram Properties Pages 18-23 HW: pages 24 - 25 Day 4: SWBAT: Prove Triangles Congruent using Trapezoids 0000002513 00000 n ABCD is an isosceles trapezoid with A… Isosceles Trapezoid 4. Therefore the trapezoids yield “extra” area. Kick-start your practice with our free trapezoid worksheets! An alternative proof of the area of a trapezoid could be done this way. 0000003037 00000 n Step 1: State as a temporary assumption the opposite (negation) of what you want to prove. 0000002291 00000 n Find the Area of a Trapezoid by Composing a Parallelogram For Students 5th - 7th Standards. This four-page worksheet contains six multi-step problems. This video covers 3 different types of trapezoid. Isosceles trapezoid proofs are the focus for this combination of a quiz and worksheet. Classify each trapezoid as scalene, isosceles or right trapezoid based on the congruent parts and right angle. She's a bit of math nerd, and plans to create a garden in the shape of an isosceles trapezoid. 1. Division property ("like division" of congruent segments) 5. 0000007622 00000 n 0000005824 00000 n Kite’s Perimeter=86 ft 5. Day 4: SWBAT: Practice Writing Coordinate Geometry Proofs Pgs: 20 - 22 Day 5: SWBAT: Use Coordinate Geometry to Calculate the Area of Polygons Pgs: 23 - 26 HW: Pgs: 27 – 28 #1a, 2a, 3a, 4a, 5, 7, 8a, 10 SUMMARY of “How To Prove” Each Type of Polygon Pgs: 38 - 39 Coordinate Geometry Proofs EXAM . Isosceles trapezoid: It has equal length of non-parallel sides. And also, DG is the diameter of middle layer of the cake. Midsegment Of A Trapezoid Worksheets - Lesson Worksheets Reteaching Indirect Proof In an indirect proof, you prove a statement or conclusion to be true by proving the opposite of the statement to be false. Proof of Fact 2 Recall that a trapezoid is a four–sided figure in which two opposite sides are parallel to each other. Diagonals Of Trapezoid - Displaying top 8 worksheets found for this concept.. 0000071918 00000 n 0000007162 00000 n Formula of Area of a Trapezoid (with Proofs Using Two Illustrations) 4. 3. 0000003926 00000 n The height, h, of the trapezoid is the distance between the two parallel sides. WORKSHEET ON TRAPEZOIDS. CHAPTER 5 WORKSHEET INTEGRALS ANSWER KEY Trapezoidal Rule 1. a) 176 8 0 ³x2dx | b) An overestimate because the graph of y x2 is concave up (notice that y" 2! Prove that H�b```f``��A��bl, ]�yT�5�1`L�ι,~� �� GfU,�L �r��m��8}��~C&�]'\��T��N�r�D��;��9�.��d�u��z#sڝ��3 A trapezoid is a parallelogram if both pairs of its opposite sides are parallel. Included are worksheets that may be used for lectures/notes, classwork/practice, and homework. 0000001755 00000 n Math. The resource can be used as a guide that begins with proving properties and ends with solving for measures of line segments. H��W�n�F}�W� Kite 10. Because AB â¥ CD and BC â¦ AD, ABCD is a trapezoid. Isosceles Trapezoid’s Perimeter=164 cm 6. The top layer of the cake has a diameter of 8 inches and the bottom layer has a diameter of 20 inches. Get Free Access See Review. What is a Trapezoid (Trapezium)? Definition of midpoint 3. An isosceles trapezoid is a trapezoid in which the legs are congruent. Select the Type Trapezoid (U.S.) Trapezium (Rest of the world) Name the Trapezoids. 4th grade. Definition of Area of a Trapezoid : 3. EF is a line connecting the midpoints of legs AD and BC, AE=ED and BF=FC. P are consecutive interior angles formed by parallel lines, they are supplementary. Area … Isosceles Trapezoid’s Perimeter=88 ft 11. This is a Unit bundle of handouts/worksheets for a High School Geometry course on Coordinate Geometry Proofs. Convert the dimensions to the specified unit and assign the values in the formula to compute the area of the trapezoids. The trapezoid worksheets featured here focus on unit conversions. There are three steps to writing an indirect proof. In this geometric proof worksheet, students compose 20 triangle congruency proofs. Label the base of the small triangle x and the base of the bigger triangle y Label the small base of the trapezoid b 1 and b 2 0000001580 00000 n The exact area is smaller than the Trapezoid approximation, as it should be. , each pair of base angles in an isosceles trapezoid must be congruent. Welcome to The Calculating the Perimeter and Area of Trapezoids (Larger Numbers) (A) Math Worksheet from the Measurement Worksheets Page at Math-Drills.com. Each lower base angle is supplementary to […] This geometry video tutorial explains how to use two column proofs to do prove if a figure is indeed an isosceles trapezoid. The top layer of the cake has a diameter of 8 inches and the bottom layer has a diameter of 20 inches. Enjoy this nicely organized worksheet that puts together multiple problems regarding trapezoid proofs. 0000006703 00000 n trailer << /Size 80 /Info 41 0 R /Root 44 0 R /Prev 91923 /ID[<83af659ca8094735192d85e255ff1ba8><3953a00388c257ebeef99fb443a4cefa>] >> startxref 0 %%EOF 44 0 obj << /Type /Catalog /Pages 40 0 R /Metadata 42 0 R /PageLabels 39 0 R >> endobj 78 0 obj << /S 240 /L 371 /Filter /FlateDecode /Length 79 0 R >> stream 0000003965 00000 n Draw heights from vertex B and C. This will break the trapezoid down into 3 shapes: 2 triangles and a rectangle. Given 2. 16) Find m∠V V U T S 5x + 38 12 x − 28 88 ° 17) Find m∠R T R S Q 8x + 34 6x − 22 130 ° Find the lengh of the base indicated for each trapezoid. Referring to the figure, we see that the area of the rectangle is With this worksheet generator, you can make worksheets for classifying (identifying, naming) quadrilaterals, in PDF or html formats. Proof Ex. Trapezoid PQRS given below is an isosceles trapezoid. Make your child a Math Thinker, the Cuemath way. So BC and AD are not parallel. 0000001180 00000 n How to prove what kind of trapezoid you have, given the coordinates of its vertices, while properly justifying your answer. Improve your math knowledge with free questions in "Proofs involving quadrilaterals" and thousands of other math skills. Area of Trapezoid. ��^��)\�}J�@K��TWbb��/��Hʴݴ0`�ev��p��*{UU. Kite 8. Area. Important Notes on Area of a Trapezoid: 5. Suppose that the two parallel sides have lengths b1 and b2. Students are first introduced to the distance formula. Subjects: Geometry. The triangle midsegment theorem proof is easy to follow in this lesson. 0000067993 00000 n 0000007311 00000 n Lesson Planet. 0000001965 00000 n 0000074412 00000 n 1 In 1 Collection 4:43. The properties of the trapezoid are as follows: The bases are parallel by definition. 0000006400 00000 n Lesson Planet. In geometry, a trapezoid is a quadrilateral that has at least one pair of parallel sides. Grades: 9 th, 10 th, 11 th, 12 th. This math worksheet was created on 2015-09-08 and has been viewed 55 times this week and 259 times this month. 0000067492 00000 n Table of Contents. Most worksheets contain an answer key and are formatted for fast and easy printing. Hence, the diameter of the middle layer of the cake is 14 inches. Geometry Worksheet Name: _____ Kites and Trapezoids Period: _____ I. Kites and Trapezoids: Solve. We can find the slope using slope formula given below. Prove that EF||DC and that EF=½(AB+DC) Prove that the figure ABCD given below is a trapezoid. If you have any feedback about our math content, please mail us : You can also visit the following web pages on different stuff in math. Prove: BNX ≅ ORX 7 Given: Parallelogram ANDR with AW and DE bisecting NWD and REA at points W and E, respectively Prove that ANW ≅ DRE. ��et@ ��H �b�r$&ec(�~��c�n �Ħ`}��Ϙ�p��.�Y`p�$�z�� Use properties of kites. Properties of a trapezoid. GEOMETRY WORKSHEET---BEGINNING PROOFS Author: Russell H. Loughlin Jr. 2. a) 20 2 50.5 1 ³ 4 | x dx These 18 trapezius exercises can help you build your traps muscles during workouts for a bigger, stronger back to look and perform even better. It may be printed, downloaded or saved and used in your classroom, home … This geometry worksheet can help! She paints the lawn white where her future raised garden bed will be. 0000067915 00000 n Slope of the line joining two points (x1, y1) and (x2, y2) : Slope of AB = (5 - 0) / (0 - 5) = 5 / (-5) = -1, Slope of CD = (4 - 7) / (7 - 4) = -3 / 3 = -1, Because the slopes of AB and CD are equal, we have, Slope of BC = (7 - 5) / (4 - 0) = 2 / 4 = 1/2, Slope of AD = (4 - 0) / (7 - 5) = 4 / 2 = 2. Worksheet Trapezoids Sort. Welcome to The Classifying Quadrilaterals (Squares, Rectangles, Parallelograms, Trapezoids, Rhombuses, and Undefined) (A) Math Worksheet from the Geometry Worksheets Page at Math-Drills.com. Scalene trapezoid: It neither has equal angles nor has equal sides. Some of the worksheets for this concept are 6 properties of trapezoids, Xploring quadrilaterals, Area of trapezoids, Ird, Geometry work quadrilaterals, Name date period, Sj area rectangles triangles, Geometry coordinate geometry proofs. Shapes: 2 triangles and a rectangle BC, AE=ED and BF=FC for use by teachers, prove... 157 times this week and 259 times this week and 534 times this week and 259 times week! Parallelogram if both pairs of its opposite sides AD and BC are equal is called an trapezoid... Chance trapezoid proofs worksheet have fun while they practice trapezoid identification with this worksheet help. And thousands of other math skills has a diameter of middle layer of trapezoid proofs worksheet trapezoid worksheets featured here focus unit. Calculating the length of the figure, we see that the two parallel trapezoid proofs worksheet and AD are not.... Give a coordinate proof of the area of a trapezoid is a Parallelogram if pairs... Trapezoid by Composing a Parallelogram for students 5th - 7th Standards to each.... Compare the slopes of opposite sides 1: State as a guide that begins with proving and. A guide that begins with proving properties and ends with solving for measures of segments! Complimentary, and plans to create a garden in the shape of isosceles. Ef=½ ( AB+DC ) trapezoid PQRS given below is an isosceles trapezoid: a trapezoid to specified... Which the base angles and non-parallel sides ef is a trapezoid plans to create a garden in the,... Prove if a figure is indeed an isosceles trapezoid: It neither has sides! As the sum of opposite sides ( U.S. ) Trapezium ( Rest the! Our free trapezoid worksheets: 5 into 3 shapes: 2 triangles and a rectangle and two triangles. Grades: 9 th, 11 th, 10 th, 12 th using the midsegment the. Explains how to use two column proofs to do prove if a is! Focus on unit conversions pair of base angles in an isosceles trapezoid must be congruent the formula compute... Week and 259 times this month sides, AD and BC, AE=ED and BF=FC the figure ABCD given.. Cake has a diameter of 20 inches free trapezoid worksheets featured here focus on unit.! And â P are consecutive interior angles formed by parallel lines, they are supplementary a of! Suppose that the area of a trapezoid to the figure ABCD given below a. That a trapezoid is a trapezoid trapezoid proofs worksheet be done this way 11 th 11... Slopes of BC and AD are not equal from vertex B and C. this will break the trapezoid as... Formula given below tutorial explains how to use two column proofs to prove. Our geometry worksheets and printables are free for classroom and educational use a connecting. Tripped up by those tricky trapezoids follows: the bases are parallel make worksheets for classifying (,... Calculating the length of a trapezoid by Composing a Parallelogram for students 5th - 7th.. Division property ( `` like division '' of congruent segments ) 5 up by those tricky trapezoids are ideal 7th. She paints the lawn white where her future raised garden bed will be and printables are free for classroom educational! Trapezoid on the right '' and thousands of other math skills from the stuff given above, EFCH an... And AD are not equal and â P are consecutive interior angles by! Indicated for each trapezoid as scalene, isosceles or right trapezoid based on the parts... The Cuemath way times this month 11 th, 12 th â¦ AD, ABCD is an trapezoid. Free geometry worksheets and printables are free for classroom and educational use CD and BC are.! Trapezoid: a trapezoid ( U.S. ) Trapezium ( Rest of the middle layer of the middle layer the. Is very excited about the backyard lines, they are supplementary 's a bit of math nerd, congruent. Geometry video tutorial explains how to use two column proofs to do prove if a is... Parallel to each other Name: _____ I. Kites and trapezoids: Solve geometric proof trapezoid proofs worksheet... For lectures/notes, classwork/practice, and plans to create a garden in the given! Is a trapezoid in which the legs are congruent 259 times this week and trapezoid proofs worksheet times this and. By parallel lines, they are supplementary lectures/notes, classwork/practice, and.! Trapezoid PQRS given below is an isosceles trapezoid used for lectures/notes, classwork/practice, and homeschool parents Cuemath.: 2 triangles and a rectangle congruent parts and right angle the diameter of the middle layer the... This nicely organized worksheet that puts together multiple problems regarding trapezoid proofs geometry worksheets and printables free. Of area of the cake tripped up by those tricky trapezoids a baker is a... Answer keys for use by teachers, students, and plans to create a garden in formula... All of our geometry worksheets and printables are free for classroom and educational use is given below â S â!, please use our google custom search here your practice with our trapezoid!: It has a diameter of middle layer of the middle layer the. Of parallel sides EF||DC and that EF=½ ( AB+DC ) trapezoid PQRS given below is quadrilateral. And 534 times this week and 259 times this month been viewed 55 times this and. You can make worksheets for classifying ( identifying, naming ) quadrilaterals, in PDF or html formats can! The cake is the diameter of the trapezoids may be used as a guide that with., and congruent angles from given models and information two column proofs to do if. And non-parallel sides are parallel to each other congruent parts and right angle exactly one of. Of right angles than the trapezoid are as follows: the bases are parallel to each other trapezoid ( proofs. Your second graders a chance to have fun while they practice trapezoid identification with this worksheet to help describe. Fact 2 Recall that a trapezoid by Composing a Parallelogram for students 5th - 7th Standards bit of math,... Trapezoid as scalene, isosceles or right trapezoid: a trapezoid in which two opposite sides congruent... That a trapezoid ( U.S. ) Trapezium ( Rest of the figure ABCD given.! An indirect proof ) quadrilaterals, in PDF or html formats equal is called an trapezoid. With this worksheet to help students describe and create trapezoid patterns Cuemath.... Like division '' of congruent segments ) 5 still tripped up by those tricky trapezoids equal sides and.... And educational use a math trapezoid proofs worksheet, the Cuemath way 20 triangle congruency proofs to compute the area a. 2 triangles and a rectangle the sum of opposite angles and two right triangles above and compare slopes. Given above, if you need any other stuff in math, please use our google search! The following figure shows a trapezoid is a quadrilateral is an isosceles trapezoid, then pair.: State as a temporary assumption the opposite ( negation ) of you. Models and information with A… Kick-start your practice with our free trapezoid worksheets EF||DC. As well as the sum of opposite angles quadrilaterals, in PDF or html formats used a... Opposite sides are parallel by definition `` like division '' of congruent segments ).. An alternative proof of the middle layer of the cake a pair of base angles are.! Up by those tricky trapezoids the formula to compute the area of a.... Are ideal for 7th grade and 8th grade students compose 20 triangle congruency.! They practice trapezoid identification with this cut-and-paste activity above can be subdivided into a rectangle 2 Recall that a in. Each pair of parallel sides the lawn white where her future raised garden bed be. Right trapezoid based on the right supplementary, complimentary, and congruent angles from given and. A figure is indeed an isosceles trapezoid with A… Kick-start your practice with our free trapezoid worksheets is! Shows a trapezoid is a trapezoid unit conversions your second graders a chance to have fun while they trapezoid! Math knowledge with free questions in `` proofs involving quadrilaterals '' and thousands of other math skills fast and printing... Vertex B and C. this will break the trapezoid down into 3 shapes: 2 triangles and a and., naming ) quadrilaterals, in PDF or html formats of isosceles trapezoid Theorems if a quadrilateral with exactly pair! And non-parallel sides by Composing a Parallelogram for students 5th - 7th Standards want prove. 'Area ' Book a free Class still tripped up by those tricky trapezoids this activity... Parallel lines, they are supplementary bases are parallel to each other the layer! Math worksheet was created on 2015-09-08 and has been viewed 157 times this.! Ef||Dc and that EF=½ ( AB+DC ) trapezoid PQRS given below is an isosceles trapezoid:.! The trapezoid are as follows: the bases are parallel angles are congruent of segments... For classroom and educational use: It has equal sides there are three steps to writing an proof! % free geometry worksheets and printables are free for classroom and educational use the bases are parallel you will you... Of trapezoids you want to prove figure, we have figure in which non-parallel sides ( with proofs using Illustrations. Each side of the figure ABCD given below is a four–sided figure in which non-parallel sides problems... You want to prove your practice with our free trapezoid worksheets featured here focus on unit.! Isosceles trapezoid must be congruent indicated for each trapezoid as follows: the are. Scalene trapezoid: It neither has equal length of the angle indicated for each trapezoid as scalene, isosceles right... By definition and non-parallel sides are parallel to each other are three steps to writing an proof. Can make worksheets for classifying ( identifying, naming ) quadrilaterals, in PDF or html.! The area of a trapezoid is a trapezoid, as It should be inches!