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An arc is intercepted by a central angle of 3π/4 radians on a circle with a radius of 28 inches.

What is the exact length of the arc? Enter your answer, in terms of π.

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jesshobbs  Mar 22, 2018
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Arc length, S...is given  by

 

S  =  r (theta  in radians)

 

So

 

S  = 28  (3pi/4)      =  28 (3/4)*pi =  [ 21 pi ]   inches

 

 

cool cool cool

CPhill  Mar 22, 2018

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