austinisbell17 austinisbell17

24-05-2017
Mathematics

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What is the arc length of the subtending arc for an angle of 72 degrees on a circle of radius 4?

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tonjawhite519 tonjawhite519

24-05-2017

use a portion of the circumference: pi x 2 x r x angle at centre =8xpix72/360 =8pi/5

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