## Prealgebra (7th Edition)

$T=9\pi$ square inches. $T=28.26$ square inches.
The area of a circle can be calculated as: $T=r^2\pi$, where r is the length of the radius. Here: $T=3^2\pi=9\pi$ square inches. By substituting 3.14 into $\pi$: $T=9\pi=9\times 3.14=28.26$ square inches.