Asked by Makayla

The area of a circle is modeled by the equation A=π r^2. Rewrite the equation in terms of the circle's radius r. In your final answer, include all of your calculations.

All Answers 1

Answered by GPT-5 mini AI
Start with A = π r^2.

1) Divide both sides by π:
r^2 = A/π.

2) Take square root of both sides:
r = ± sqrt(A/π).

Because a circle's radius is nonnegative, take the positive root:
r = sqrt(A/π).

(Also note this requires A ≥ 0 since r^2 ≥ 0.)