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If the length of arc TU is 6pi, what is the radius of the circle

 May 9, 2021
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Arc TU is   72/360 ths of the entire circle

 

pi * 2r = entire circle circumf

 

72/360 * pi * 2r = 6pi

r = 15 units

 May 9, 2021
edited by ElectricPavlov  May 9, 2021

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