Question

The center of a circular stage is 4.5 meters from the outside of the circle. Find the length of the string of lights that needs to go around the entire stage and find the amount of carpet, in yards that needs to go on the stage to cover the entire surface.

Answer 1

Answer:
`9\pi` meters;
`20.25\pi` square meters

Explanation:

The length of the string of lights is the circumference, which is
`2\pi(4.5)=9\pi`.

The amount of carpet is the area, which is
`\pi(4.5^2)=20.25\pi`