Question

If Mrs.Shaw draws a circle with circumference of 22 inches, what is the radius if her circle?​

Answer 1

`\textit{circumference of a circle}\\\\ C=2\pi r ~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ C=22 \end{cases}\implies 22=2\pi r\implies \cfrac{22}{2\pi }=r\implies 3.50\approx r`

Answer 2

3.5 in

Diameter would be 7.

Radius is 1/2 of diameter: 3.5 in.

Explanation: