Answer
$$Area =423 \ cm^2,
\\
Circumference= 72.9 \ cm .$$
Work Step by Step
The area and circumference of the circle are given by:
$$Area=r^2 \pi= (23.2/2)^2\pi=422.733 \ cm^2\approx 423 ~cm^2$$
$$Circumference= 2r \pi=23.2 \pi \ cm=72.885 \ cm \approx 72.9~cm.$$
