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Find the length of the arc on a circle of radius 4, subtended by a central angle of 2pie/3 radians. provide a sketch pf the center angle and arc

 May 16, 2020
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arc length =  r *  ( theta  in radians )

 

arc length  =  4 (2pi/3)  =  8pi/3 ≈   8.38

 

Here's a sketch : https://www.desmos.com/calculator/aeykjvxrui

 

The angle  (and arc) is bounded by the x axis  and  the green line  moving counter-clockwise

 

cool cool cool

 May 16, 2020

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