SOLUTION: suppose the radius of a circle is 7. what is the area? can you please help me out.

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Question 871362: suppose the radius of a circle is 7. what is the area?
can you please help me out.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let area = +A+
Let the radius = +r+
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+A+=+pi%2Ar%5E2+ is the formula for
the area of a circle
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given:
+r+=+7+
+A+=+pi%2A7%5E2+
+A+=+49%2Api+
Note that +pi+=+3.14159+ approximately
+A+=+49%2A3.14159+
+A+=+153.938+