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OpenStudy (anonymous):
if a sector is formed by a central angle of measure 75 and has an area of 15pi cm squared calculate the area of the entire circle
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OpenStudy (anonymous):
72pi
OpenStudy (anonymous):
there are 360 / 75 = 4.8 sectors of angle 75 degrees in a circle. Since one of them has area 15 pi, 4.8 of them have 4.8 x 15pi = 72pi area 72pi
OpenStudy (anonymous):
solve for X : 75/360 = 15pi / X.
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