Question

1.What is the volume of a sphere with a radius of 5 in.? Use 3.14 for π. Round to the nearest hundredth, if needed.
2.
What is the volume of a sphere with a radius of 3 mm? Use 3.14 for π. Round to the nearest hundredth, if needed
3.
The volume of a sphere is 288π in3. What is the radius?
4.What is the volume of a sphere with a radius of 2 cm? Use 3.14 for π. Round to the nearest hundredth, if needed.
5.What is the volume of a sphere with a diameter of 8 mm? Use 3.14 for π. Round to the nearest hundredth, if needed.

Answer 1

The volume of a sphere is always equal to
\[{4\over3}π⋅r^3\]
so in the first problem you have
\[Volume={4\over3}\cdot 3.14⋅5^3=523,33\]
The other problems are pretty much the same.