Name__________________________

VOLUME OF A SPHERE #1-KEY

Directions: For each sphere below, the diameter of the shape is given. Use the volume formula

,where r stands for the radius, to find the volume. Use 3.14 for and round answers

to the nearest tenth. Remember, the radius is half the size of the diameter.

1) 2) 3) 4)

24 cm

18 cm

10 cm

2 cm

V = 4.2 cu. cm V = 523.3 cu. cm V = 3,052.1 cu. cm V = 7,234.6 cu. cm

5) 6) 7) 8)

80 cm

64 cm

48 cm

40 cm

V = 33,493.3 cu. cm V = 57876.5 cu. cm V = 137,188.7 cu. cm V = 267,946.7 cu. cm

9) 10) 11) 12)

8.4 cm

15 cm

9 cm

3 cm

V = 14.1 cu. cm V = 381.5 cu. cm V = 1,766.3 cu. cm V = 310.2 cu. cm