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OpenStudy (anonymous):
http://prntscr.com/3d2i1i
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OpenStudy (vianne):
Don't give out links for people may not click it xD You can post an attachment though :P
OpenStudy (anonymous):
the link is a attachment
OpenStudy (vianne):
Okay.
OpenStudy (vianne):
I think it's A because usually it'd be R*2*3.14 But since it's a semicircle then you'd do D/2*3.14
OpenStudy (anonymous):
yup its A
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