Click Here Name LESSON Date Class Practice C 7-6 Quadrilaterals Give all the possible names for each figure. Circle the most exact name. 1. 2. 3. 4. Draw each quadrilateral as it is described. If it is not possible, explain. 5. a parallelogram that is also a trapezoid 6. a rhombus that is not a parallelogram 7. Draw an example of a quadrilateral that is not a parallelogram or a trapezoid. 8. All the sides of a quadrilateral measure 25 cm. Explain why this is not enough information to classify what kind of quadrilateral it is. Copyright © by Holt, Rinehart and Winston. All rights reserved. 59 Holt Middle School Math Course 1 Practice A 7-6 Quadrilaterals Exploration Recording Sheet 7-6 Quadrilaterals LESSON LESSON Find a real-world example for each quadrilateral. Possible Quadrilateral Choose the correct answer. answers: 2. Which name is most descriptive of the figure shown below? 1. Which name is most descriptive of the figure shown below? Example 1. a piece of tangram puzzle F parallelogram G square H rectangle ! J quadrilateral A quadrilateral B parallelogram C square D rhombus ! Parallelogram 2. the diamond shape in a deck of cards 4. Which of the following statements is always true? F A trapezoid is also a parallelogram. G A square is also a rhombus. ! H A parallelogram is also a rectangle. J A rectangle is also a square. 3. Which of the following statements is not always true? A A quadrilateral has 4 sides. B A quadrilateral has 4 angles. C A quadrilateral has straight sides. D A quadrilateral has right angles. ! Rhombus 3. a window Rectangle 4. side view of a yogurt container 5. Carol says this poster is a parallelogram. Anita says it is a rectangle. Who is right? Explain. Trapezoid TALENT SHOW Think and Discuss 5. Discuss how the quadrilaterals are similar and different. All quadrilaterals have 4 sides and 4 angles. Not all have sides They both are right. A rectangle is also a parallelogram because its that are the same length. opposite sides are parallel and congruent, and its opposite angles are congruent. 6. Explain why a rectangle is a parallelogram. 6. Joel hung two square mirrored tiles side-by-side in his bathroom. What is the best description for the geometric figure the two mirrors formed together? A parallelogram has 4 sides and opposite sides are parallel, the same as a rectangle. a rectangle 56 Copyright © by Holt, Rinehart and Winston. All rights reserved. Holt Middle School Math Course 1 Practice B 7-6 Quadrilaterals 57 Copyright © by Holt, Rinehart and Winston. All rights reserved. Practice C 7-6 Quadrilaterals LESSON LESSON Give the most descriptive name for each figure. 1. 2. Give all the possible names for each figure. Circle the most exact name. 3. 1. rhombus trapezoid 4. parallelogram 5. 2. quadrilateral, parallelogram, 6. quadrilateral, trapezoid rhombus 3. quadrilateral square parallelograms 8. A rhombus is sometimes a 9. All trapezoids are also quadrilateral 10. A and four angles. . square quadrilaterals 4. rectangle Complete each statement. 7. All rectangles are also Holt Middle School Math Course 1 quadrilateral, parallelogram, quadrilateral, parallelogram, rectangle square, rectangle, rhombus Draw each quadrilateral as it is described. If it is not possible, explain. . . 5. a parallelogram that is also a trapezoid impossible because a trapezoid is any plane figure with four straight sides 11. A quadrilateral with two sets of parallel lines, but does not have 90° angles is called rhombus a . 12. Devon made a table top in the shape of a quadrilateral. All of its angles measure 90°. What could the shape of Devon’s table top be? has only two parallel sides 6. a rhombus that is not a parallelogram impossible because a rhombus is always a parallelogram 7. Draw an example of a quadrilateral that is not a parallelogram or a trapezoid. a rectangle or a square Students should draw a four-sided figure with no parallel sides. 13. The perimeter of a rhombus is 64 inches. What is the length of each side of the rhombus? Explain. 16 inches, All four sides of a rhombus are congruent, and 64 ! 4 " 16. 8. All the sides of a quadrilateral measure 25 cm. Explain why this is not enough information to classify what kind of quadrilateral it is. 14. Explain why a trapezoid is a quadrilateral, but a quadrilateral is not always a trapezoid. It could either be a square or a rhombus. I would need to know the angle A trapezoid has four sides, always making it a quadrilateral. A quadrilateral measurements to further classify it. can,but not always, have two parallel sides, thus a quatrilateral is not always a trapezoid. Copyright © by Holt, Rinehart and Winston. All rights reserved. 58 Copyright © by Holt, Rinehart and Winston. All rights reserved. Holt Middle School Math Course 1 Copyright © by Holt, Rinehart and Winston. All rights reserved. 152 59 Holt Middle School Math Course 1 Holt Middle School Math Course 1