Question

Find the surface area of the cone. leave your answer in terms of pi

Answer 1

Explanation:

no picture...

Answer 2

The surface of cone consists of the lateral surface and the base area. So,
1. the lateral surface is equal to
`\pi Rs`, where R is the radius of the base and s is the slant height of the cone;
2. the base area is
`\pi R^2` (since base is a circle with radius R).
Then the surface area is
`SA=\pi Rs+\pi R^2`.
You have only to put in correct numbers.