SOLUTION: find the area of a sector of a circle whose radius is 18, having an arc measure of 30 degrees.

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Question 382622: find the area of a sector of a circle whose radius is 18, having an arc measure of 30 degrees.
Found 2 solutions by robertb, kingme18:
Answer by robertb(5830) About Me  (Show Source):
You can put this solution on YOUR website!
A+=+%28theta%2Ar%5E2%29%2F2+=+%28%28pi%2F6%29%2A18%5E2%29%2F2+=+27pi square units.

Answer by kingme18(98) About Me  (Show Source):
You can put this solution on YOUR website!
The area of a circle is pi%2Ar%5E2. A sector is a fraction of the circle. The total degrees in a circle is 360, so the fraction is out of 360. The formula you should use for the area of a sector is pi%2Ar%5E2%2A%28degrees%2F360%29 Here, you will do: pi%2A18%5E2%2A%2830%2F360%29, which is approximately 84.823.