Shaded region

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Shaded region

by alltimeacheiver » Tue May 10, 2011 5:40 am
Pls let me know where I am wrong
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Shaded region.PNG

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by finance » Tue May 10, 2011 5:56 am
The area of the whole circle is pi*16, then multiply by 3/4 which is the shaded region.

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by finance » Tue May 10, 2011 5:56 am
OA=12pi