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Mathematics 11 Online
OpenStudy (anonymous):

A circle has a radius of 7cm. Find the radian measure of the central angle (theta) that intercepts an arc of length 20cm.

OpenStudy (anonymous):

diameter is 2*7 or 14 Pi 14 is 360 degrees 20/(Pi 14) = 163.7 degrees

OpenStudy (anonymous):

so if it's measured in radians it would be 20/14pi ?

OpenStudy (anonymous):

0.454728 radians, yes.

OpenStudy (anonymous):

okay thank you so much

OpenStudy (anonymous):

Your welcome.

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