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OpenStudy (anonymous):
If the circumference of the circle below is 66 cm, what is the length of XY , in centimeters? Do not include units in your answer.
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OpenStudy (anonymous):
|dw:1403125025575:dw|
OpenStudy (anonymous):
Chord lenth, x = 2 x r x sin( a/2r ) where r = radius a is the arc length of XY
OpenStudy (anonymous):
wouldnt it just be 60/360 = 1/6 and then 66 * (1/6) = 11
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