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14-09-2016
Mathematics

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For a circle of radius 2 feet, find the arc length s subtended by a central angle of 54 degrees.

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HomertheGenius HomertheGenius

17-09-2016

r = 2 ft; α = 54°
s = ( r π α ) / 180°
s = ( 2 π 54° ) / 180°
s = 108° π / 180°
s = 0.6 π ft
or: s = 0.6 · 3.14 = 1.884 ft

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