Question

Find the radius of a circle with the given circumference. 6 square root of 2 pi in.

Answer 1

$A_{circle} = \pi r^2$

$r^2 = \dfrac{A}{\pi}$

$r = \sqrt{\dfrac{A}{\pi}}$

$r = \sqrt{\dfrac{6\sqrt{2}\pi}{\pi}}$

$r = \sqrt{6\sqrt{2}}$