Mathematics help in calculating the area of a shaded sector


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Nov 1st, 2015

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theta in radians

2*r = 12.5 in , r = 6.25 in

theta = 25 degrees = [pi/180]*25 radians = 5*pi/36

A = {6.25*6.25}/2 *{5*pi/36} = 8.5 in^2 

Option D

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Nov 1st, 2015

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