What additional piece of information must be known in order to calculate the volume of the cylinder below?
1. the diameter of a base
2. the height of the cylinder
3.the area of a base
4.the radius of a base
![What additional piece of information must be known in order to calculate the volume of the cylinder below 1 the diameter of a base 2 the height of the cylinder class=](https://us-static.z-dn.net/files/d40/a6f4b964029e00c5bd812fd68dad8908.jpg)