The area of a circle is modeled by the equation

Question

A
=
π
r
2
. Rewrite the equation in terms of the circle’s radius
r
. In your final answer, include all of your calculations.

Answer 1

To rewrite the equation in terms of the circle's radius r, we simply solve for r:

A = πr^2

Divide both sides by π:

A/π = r^2

Take the square root of both sides:

√(A/π) = r

Therefore, the equation rewritten in terms of the circle's radius r is:

r = √(A/π)