In the adjoining figure a square OABC is inscribed in a quadrant OPBQ . If OA= 30 am find the area of the shaded region
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area of shaded region = area of quadrant - area of square
area of quadrant= 1/4pie r^2
radius =20root2
1/4*22/7*20root3*20root3
628
area of square = side ^2
20*20
400
area of shaded region =628-400
228cm^2
hope it helps u
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