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A man running around a race course notes...

A man running around a race course notes that the sum of the distances of two flagposts from him a always 10m and the distance between the flag posts is 8m. Then the area of the path he encloses in square meters is 15`pi` (b) `20pi` (c) `27pi` (d) `30pi`

A

`15pi`

B

`12pi`

C

`18pi`

D

`8pi`

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The correct Answer is:
A
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