Question

If you know the area of the circle how can you find its radius

Answer 1

The diameter is always double the radius. Hence, the formula is derived by dividing the diameter by 2.

Explanation:

Radius Formulas

Radius in Terms of Diameter d ⁄ 2

Radius in Terms of Circumference C ⁄ 2π

Radius in Terms of Area √(A ⁄ π)

Answer 2

If we know the area of the circle we can find the radius by using the formula for

Area = πr²