3 years ago

A circle has an area of 324╥ cm². What is the radius?

2 answers:

8 0

The area of a circle has the formula A = pi * r^2. Since the area is known, we could determine the radius of the circle.

A = pi*r^2
324*pi = pi*r^2
324 = r^2
r = square root (324)
r = 18

The answer is 18 cm.

Stolb23 [73]3 years ago

3 0

I got 18 x 18 = 324.

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