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Two sectors of a circle of radius 12 overlap as shown, with P and R as the centers of the respective circles. Determine the area of the shaded region.

 Jun 11, 2018
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The area of half the saded region is 

144pi/6-36sqrt3=29pi-36sqrt3

Then, double that is 58pi-36sqrt3.

 Jun 12, 2018

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