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April 19, 2015

April 19, 2015

Posted by **ervin** on Tuesday, February 22, 2011 at 12:14pm.

- trig -
**Helper**, Tuesday, February 22, 2011 at 12:51pmx^2 + y^2 = 49

r^2 = 49

r = 7

Arc length A = angle in rads * r

To convert 30 deg to radians

30 deg * pi/180 = 30pi/180 = pi/6

A = pi/6 * 7

A = 7pi/6

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