Question

How do you find the circumference and area of a circle with radius of 5 centimeters?

Answer 1

The circumference is `10\pi`, the area is `25\pi`.

Explanation:

You just need to apply the definitions: the circumference is `2\pi*r`, where `r` is the radius. In your case, `2pi*5=10\pi`.

On the other hand, the area is `pi*r^2`, in your case `pi*25`.