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OpenStudy (anonymous):
A circle has a radius of 47.2 units. Find the length of an arc intercepted by a central angle measuring 5.9 radians.
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OpenStudy (amistre64):
how many 5.9s are in 2pi r ?
OpenStudy (anonymous):
what? @amistre64
OpenStudy (amistre64):
yeah, im trying to see if im reading it right ....
OpenStudy (amistre64):
2pi r is the length of an arc that is formed from an angle of 2pi radians so "radians" times "radius" is arc length
OpenStudy (amistre64):
1 radian, measures the arc ength of 1 radius |dw:1386886737789:dw|
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OpenStudy (amistre64):
so 5.9 radians measures out 5.9 radiuses
OpenStudy (anonymous):
did you get 278.48?
OpenStudy (amistre64):
eventually yes :)
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