3 years ago

WILL MARK BRAINLIEST!!!!

Mathematics

1 answer:

Kitty [74]3 years ago

3 0

Answer:

$20\pi$

Step-by-step explanation:

Let the radius of the disk be r centimeters. Since the area of the disk is 100pi sq cm, we have $\pi r^2=100\pi$ , and since r is positive, $r=10.$ The circumference of a circle is $2\pi r$ , which, in this case, is $\boxed{20\pi}$ .

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