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Mathematics 19 Online
OpenStudy (anonymous):

A sector angle of a circle with radius 9cm measures 5pi/12. What is the perimeter of the sector?

OpenStudy (nottim):

I dunno what to do here. What's a sector.

OpenStudy (turingtest):

|dw:1327625297929:dw|\[\huge r\theta=s\]where theta is in radians

OpenStudy (anonymous):

I figured it out thankfully :) But thanks for at least thinking about it though !

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