1. A solid plastic ball is a sphere with radius 8 in. How much plastic does it take to make one ball? Use 3.14 for π. Round to the nearest hundredth as needed.
2. Find the volume of the sphere to the nearest cubic foot. Use 3.14 for π.
3. Find the volume of the figure. Use 3.14 as the value of π. Round to the nearest whole number.
4. A spherical boulder is 20 ft in diameter and weighs almost 8 tons. Find the volume. Use 3.14 for π. Round to the nearest whole number as needed.
5. A sphere has a diameter of 0.968 inches.
a. What is the volume of the sphere? Round to the nearest hundredth as needed.
b. How does the volume of this sphere compare to the volume of a sphere with radius 0.968 inches? Use 3.14 for π.
6. The volume of a rubber ball is 5 comma 461 , and 1 third , pi , cm cubed . What is the radius of the ball?
7. The volume of a sphere is 7,234.56 cm^{3}. To the nearest centimeter, what is the radius of the sphere? Use 3.14 for π.
8. The volume of a soap bubble is 1,375.4 mm^{3}. Find the radius and diameter of the soap bubble. Use 3.14 for π. Round to the nearest whole whole number as needed.
9. Think About the Process A bowl is in the shape of a hemisphere (half a sphere) with a diameter of 5 in.
a. How can you find the radius if you know the diameter of the sphere?
A. d = 2πr
B. d = 2r
C. r = 2d
D. r = πd
b. Find the volume of the bowl. Use 3.14 for π and round to the nearest whole number as needed.
10.
a. Writing What is the volume of the sphere? Use 3.14 for π. Round to the nearest hundredth as needed.
b. Describe how the volume of the sphere changes if the radius is increased by 1.
11.
a. Reasoning The volume of a sphere is 356.64 in.^{3}. To the nearest tenth, what is the radius of the sphere? Use 3.14 for π.
b. How can you check that your answer is correct? Explain.