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