At-Home Practice 9 Polygons Determine Whether Each Figure Is a Polygon

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CHAPTER At-Home Practice 9 Polygons Determine whether each figure is a polygon. Explain your answer.

1. 2. 3.

Name each polygon.

4. 5. 6.

Classify each triangle according to its sides and angles.

7. 8. 9.

Give all of the names that apply to each quadrilateral.

10. 11. 12.

Find the unknown angle measure in each triangle.

62° 25° 42°

° x °

13. 14. x

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.aueeultrl8 ih cln .ots ssee 0 aallga;rcage hmu;square. rhombus; rectangle; parallelogram; 10. isosceles obtuse 9. scalene right 8. equilateral acute 7.

3. The figure is not a polygon. A polygon must be a closed figure. 4. pentagon 5. octagon 6. hexagon hexagon 6. octagon 5. pentagon 4. figure. closed a be must polygon A polygon. a not is figure The 3.

1. The figure is not a polygon. It is not bounded by line segments. 2. The figure is a polygon. a is figure The 2. segments. line by bounded not is It polygon. a not is figure The 1. Answers:

CHAPTER Family Fun 9 Draw It! Directions The goal is for your team to be the first team to correctly draw the given polygon. ¥ Pick someone to be the announcer and the judge. ¥ Form teams of two people. ¥ Cut out the cards. The announcer picks a card from the deck and reads the description. ¥ Each team has to name and draw that object. ¥ The first team finished shows their picture to the announcer who decides if the picture is accurate. If the picture is correct, that team earns one point. The team with the most points wins! Be creative and make your own description cards to add to the pile. 1. 2. 3. 4. 5.

A 6-sided A 3-sided A regular A 3-sided A quadrilateral figure with figure with polygon with figure with one with four right different side equal angle six sides. right angle. angles. lengths. measures.

6. 7. 8. 9. 10. A figure with A 4-sided A figure with 2 pairs of A figure with figure with A figure with four congruent parallel sides 8 congruent only one pair four sides. sides and four and opposite sides. of parallel right angles. congruent sides. angles.

11. 12. 13. 14. 15. A parallelogram that is not a A 5-sided A parallelogram A rectangle A 3-sided rectangle or figure with with four with four figure with two a square but congruent congruent congruent congruent has diagonals angles and sides. sides. sides. that are sides.

perpendicular.

13. Rhombus 14. Regular pentagon 15. Isosceles triangle Isosceles 15. pentagon Regular 14. Rhombus 13.

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1. Regular hexagon 2. Right triangle 3. Rectangle 4. Irregular hexagon 5. Equilateral triangle triangle Equilateral 5. hexagon Irregular 4. Rectangle 3. triangle Right 2. hexagon Regular 1. Answers: