Page 668 - Basic College Mathematics with Early Integers

Vocabulary and Readiness Check

Use the choices below to fill in each blank.

22
circumference radius p
7
diameter perimeter 3.14
1. The of a polygon is the sum of the lengths of its sides.

2. The distance around a circle is called the .

3. The exact ratio of circumference to diameter is .

4. The diameter of a circle is double its .

5. Both and are approximations for .p

6. The radius of a circle is half its .

9.3 Exercise Set FOR EXTRA HELP

Objective Find the perimeter of each figure. See Examples 1 through 6.
1. 2. 3. 4.
Parallelogram
Parallelogram
15 ft Rectangle 25 cm
35 cm
Rectangle 14 m
17 ft 3 yd

2 yd
5 m

5. 6. 7. 8. 10 m
5 in. 7 in. 11 units 10 ft 8 ft 4 m
5 units
10 m
13 m
9 in. 10 units 7 ft 8 ft 9 m

15 ft 20 m

Find the perimeter of each regular polygon. (The sides of a regular polygon have the same length.)
9. 10. 11. 12. 15 yd
14 inches
31 cm

50 m

645