Question

The area of a circle is 113.04 in.^2. What is the radius of the circle?

Answer 1

$\bf \textit{area of a circle}\\\\ A=\pi r^2\qquad \begin{cases} r=radius\\ ------\\ A=113.04 \end{cases}\implies 113.04=\pi r^2 \\\\\\ \cfrac{113.04}{\pi }=r^2\implies \sqrt{\cfrac{113.04}{\pi }}=r$