1. If in the figure below, angle XYZ = 90° and the length of the arc XZ = 10π, then the area of the sector XYZ is
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By: anil on 05 May 2019 02.39 am
Length of arc XZ is the perimeter of quarter circle. $$frac{pi r}{2}$$ = 10$$pi$$ r=20 Area of sector XYZ = Area of quarter circle = $$frac{pi r^{2}}{4}$$ Area = 100$$pi$$
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