Name__________________________

VOLUME OF A SPHERE #3-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. Round answers to the nearest tenth

and leave your answers in terms of . Remember, the radius is half the size of the diameter.

1) 2) 3) 4)

25 cm

32 cm

24 cm

12 cm

V = V = V = V =

5) 6) 7) 8)

43 cm

6.8 cm

52 cm

36 cm

V = V = V = V =

9) 10) 11) 12)

4.8 cm

19 cm

64 cm

3.8 cm

V = V = V = V =