The lateral area is twice as big as the base area of a cone. If the height of the cone is 9, what is the entire surface area (base area plus lateral area)?

What is the surface area of a cone with a radius of 4 and a height of 3?

In terms of , express the surface area of the provided right circular cone.

You are given a right circular cone with height . The radius is twice the length of the height. What is the volume?

A right cone has a radius of 4R and a height of 3R. What is the ratio of the total surface area of the cone to the surface area of just the base?

In terms of , express the surface area of the above right circular cone.