Name__________________________

VOLUME OF A SPHERE #3-KEY

Directions: Find the volume of each sphere below. The formula to calculate the volume of a sphere is

, where r stands for the radius. Use 3.14 for and round answers to the nearest tenth.

1) 2) 3) 4)

1.5 cm

8.1 cm

4.3 cm

6.7 cm

V = 332.9 cu. cm V = 1,259.2 cu. cm V = 2,225.0 cu. cm V = 14.1 cu. cm

5) 6) 7) 8)

3.2 cm

5.8 cm

0.8 cm

2.5 cm

V = 2.1 cu. cm V = 65.4 cu. cm V = 816.9 cu. cm V = 137.2 cu. cm

9) 10) 11) 12)

5.8 cm

5.2 cm

1.4 cm

4.6 cm

V = 11.5 cu. cm V = 407.5 cu. cm V = 588.7 cu. cm V = 816.9 cu. cm