## anonymous 4 years ago A circular disc has a diameter of 24 centimeters. What is the area of the disc?

1. anonymous

144pi

2. rulnick

144 pi cm^2, because area = pi d^2 / 4 and d = 24 cm.

3. anonymous

or... simply A=pi(r^2) and r=d/2

4. rulnick

In decimal, that's about 452.4 cm^2.

5. ChrisS

$\pi*r^{2}$ $\pi*12^{2}$ $144\pi$