CHAPTER 11 REVIEW

QUESTION ONE

• Find the sum of the interior angles of a convex decagon.

A. 1800°B. 1440°C. 360°D. 180°

QUESTION TWO

• Find the sum of the interior angles of a convex 14-gon.

A. 180°B. 360°C. 2160°D. 2520°

QUESTION THREE

• The interior angle of a regular polygon is 140°. Find the number of sides.

A. 20B. 9C. 3D. 2

QUESTION FOUR

• The interior angle of a regular polygon is 150°. Find the number of sides.

A. 2B. 3C. 12D. 15

QUESTION FIVE

• The exterior angle of a regular polygon is 30°. Find the number of sides.

A. 6B. 12C. 18D. 24

QUESTION SIX

• The exterior angle of a regular polygon is 15°. Find the number of sides.

A. 24B. 18C. 12 D. 6

QUESTION SEVEN

• A convex hexagon has exterior angles of 15°, 47°, 113°, 28° and 79°. Find the measure of the last angle.

A. 438°B. 102°C. 93°D. 78°

QUESTION EIGHT

• Find the perimeter and the area of the regular hexagon, given the radius is 14.

QUESTION EIGHT

• Find the perimeter and the area of the regular hexagon, given the radius is 14.

A. P = 84, A = 294B. P = , A = 147C. P = 84 , A = 294D. P = 42 , A = 147

3

42 3 3

3 3

3

QUESTION NINE

• Find the perimeter and the area equilateral triangle, given the apothem is 3.

QUESTION NINE

• Find the perimeter and the area equilateral triangle, given the apothem is 3.

A. P = 9 , A =

B. P = 18 , A = 27

C. P = 6 , A = 9

D. P = 18 , A = 54

3 3

3

272 3

3 3

3 3

QUESTION TEN

• Find the perimeter and the area a square, given the radius is 6.

QUESTION TEN

• Find the perimeter and the area a square, given the radius is 6.

A. P = 48 , A = 288B. P = 12 , A = 144C. P = 12 , A = 18D. P = 24 , A = 72 2

2

2

QUESTION ELEVEN

• Find the ratio of the perimeters of to . Given the area of is 18 and the area of is 128.

ABC

XYZ XYZ

ABC V

V V

V

QUESTION ELEVEN

• Find the ratio of the perimeters ofto . Given the area of is 18 and the area of is 128.

A. B. C. D.

VABC

VXYZ VXYZ

VABC

9

64

64

9

8

3

3

8

QUESTION TWELVE

• The ratio of the lengths of corresponding sides of two similar polygons is 6:13. What is the ratio of their areas?

QUESTION TWELVE

• The ratio of the lengths of corresponding sides of two similar polygons is 6:13. What is the ratio of their areas?

• A. B. C. D.

169

36

36

169

6

13

13

6

QUESTION THIRTEEN

• The ratio of the perimeters of two similar polygons is 8:24. What is the ratio of the lengths of corresponding sides?

QUESTION THIRTEEN

• The ratio of the perimeters of two similar polygons is 8:24. What is the ratio of the lengths of corresponding sides?

A. B. C. D.

1

9

1

3

9

1

3

1

Answers to Review1. B 2. C 3. B

4. C 5. B 6. A

7. D 8. A 9. B

10. D 11. D 12. B

13. D