Question

THIS IS AREA OF CIRCLES PLS HELPP​

Answer 1

r = 3 ft.

Explanation:

In order to solve this problem, you need to substitute the information given into the equation and solve for r. The problem tells us that the area of the circle is 9π ft². We can use this value and substitute it into the equation.

9π = πr²

⇒ 9 = r²

⇒ 3 = r

Therefore, the radius of the circle is 3 ft.

Answer 2

3 ft

Explanation:

You are given the area, and the area formula, and you can set them equal to each other:

pi r^2 = 9 pi

Divide by pi on both sides:

r^2 = 9

Find the square root of both sides to get:

r = 3 feet