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OpenStudy (anonymous):
The circumference of a circle is 60 pi. what is the length of an arc of 140 degrees? help please
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OpenStudy (anonymous):
ok .... 60 =2pi r r = 30/pi s = r *theta s = 140 * 30 /pi= 1336.90
OpenStudy (anonymous):
r should be 30. 60pi/2pi
OpenStudy (anonymous):
oh thnx i forgot pi
OpenStudy (anonymous):
so your answer would be s = 140 *30
OpenStudy (anonymous):
Convert degrees to radians. 140 degrees x pi/180 L = (140)(pi)(30) / 180 = 73.27
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