WORD PROBLEMS ON SPHERE AND HEMISPHERE WORKSHEET

Problem 1 :

The diameter of a baseball is 7.4 cm. Use 3.14 for π.

a. Find the surface area to the nearest tenth of a square cm.

b. Find the volume of the baseball to the nearest tenth of a cubic cm.

Solution

Problem 2 :

The diameter of a golf ball is 4.3 cm. Use 3.14 for π.

a. Find the surface area to the nearest tenth of a square cm.

b. Find the volume of the golf ball to the nearest tenth of a cubic cm.

Solution

Problem 3 :

Each tennis ball is a sphere with radius 3.4 cm. Use 3.14 for π.

a. Find the surface area of 3 tennis balls to the nearest tenth of a square cm.

b. Find the volume of 3 tennis balls to the nearest tenth of a cubic cm.

Solution

Problem 4 :

A spherical watermelon has a 12 in. diameter. The volume of a particular spherical cantaloupe (melon) is 1/2 of the volume of the watermelon. Find the diameter of the cantaloupe to the nearest tenth of an inch.

Solution

Problem 5 :

For the sun to collapse to a “black hole”, it would have to be compressed into a sphere with radius of 1 kilometer.

a. What would be its surface area?

b. What would be its volume?

Solution

Problem 6 :

Find the volume of a hemisphere with radius 12.

Solution