Question

The area of a circle is 8π square units. What is the radius of the circle in simplest radical form?

Answer 1

Explanation:

The area of a circle is :A= π r² r : the radius

A= 8π square units

so : π r² = 8π

r² = 8

r = √8 = √(4 × 2) =√4×√2

r = 2√2 units