SOLUTION: how do u find the area of a circle with the radius of 5 and 1/3 feet.

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Question 8872: how do u find the area of a circle with the radius of 5 and 1/3 feet.
Found 2 solutions by mrduffner, rapaljer:
Answer by mrduffner(11) About Me  (Show Source):
You can put this solution on YOUR website!
The formula for area of a circle is A+=+pi%2Ar%5E2. Let's plug in the radius. We have A+=+pi%2A%285%261%2F3%29%5E2. Then we square 5%261%2F3, making 28%264%2F9. So the answer is A+=+28%264%2F9%2Api, or approximately 89.36. Hope this helps :)

Answer by rapaljer(4551) About Me  (Show Source):
You can put this solution on YOUR website!
+A+=+pi%2A+r%5E2

In this case, r = 5 1/3 ft, which as an improper fraction is 16/3 feet.

A+=+pi+%2A+%2816%2F3%29%5E2 Square the numerator, which is 256, and the denominator, which is 9.

A+=+pi+%2A+%28256%2F9%29+ which can be written as %28256%2Api%29%2F9 feet.

However, some books want you to substitute 3.14 for pi, and calculate the decimal approximation. Do what you need to do! I like leaving it in terms of pi.

R^2 at SCC