10.2.5 Spheres − Practice
1. Find the volume of the sphere in terms of π .
2. There is a beach ball with radius 24 cm and a ping pong ball with radius 4 cm. Find how many times greater the volume of the beach ball is as that of the ping pong ball.
3. There is a basketball with a diameter of 9 in. and a softball with a diameter of 4 in. Find how many times greater the volume of the basketball is as that of the softball.
4. Find the volume and surface area of a sphere in terms of π with a great circle area of 144 π ft 2 .
5. A sphere has radius 8 ft. If the radius is doubled, what is the effect on the volume?
6. Find the volume and surface area of the composite figure. Give your answer in terms of π .
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