nicole2019
18

# find the area of a circle with a diameter of 22 inches?

$d=2r\\ d=22\\ 2r=22\\ r=11\ inches\\ \\ A=\pi r^2\\ A=\pi \cdot 11^2=3,14 \cdot 121=379,94\ inch^2$
$R=\frac{Diameter}{2}$ then $R=\frac{22~in}{2}$ $\boxed{R=11~in}$ now we just need to apply this formula $S=\pi*R^2$ $S=\pi*11^2$ $\boxed{\boxed{S=121*\pi~in^2}}$