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Mathematics 13 Online
OpenStudy (anonymous):

Medal and fan for explaining these problems!

OpenStudy (anonymous):

OpenStudy (anonymous):

Those are the problems

OpenStudy (kfireangel):

well for 16 you have to do the small circles length times pi and same with the big circles length then take what you get from the big circle and subtract the small circle, so basically 8 * pi and 12 * pi then dp (12*pi)-(8*pi), i dont know if this is correct but its the best understanding i have

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