Question

the distance from the center of a compact disc to the edge of the desk is 6 cm. what is the area of the compact disc

Answer 1

A =
`\pi` * r²

A = 3,14 * 6² ⇒ 3,14 * 36 ⇒ 113,04 - answer.

Answer 2

The equation to find the area of a circle is:
Pi times radius squared

So the radius is 6
6 squared is 36
36 times pi (3.14) is 113.04
So the area of the circle is 113.04 cm