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Can someone please help me with this? I don’t understand.

Show work please.

Can someone please help me with this? I don’t understand. Show work please.-example-1
User Sherry
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1 Answer

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The formula for the area of a circle is A = πr^2, where A is the area and r is the radius.

Given that the area of the circle is 81π cm^2, we can set up the equation:

81π = πr^2

Dividing both sides by π, we get:

81 = r^2

Taking the square root of both sides, we get:

r = 9

Therefore, the radius of the circle is 9 cm.
User Evilruff
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