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Mathematics 8 Online
OpenStudy (anonymous):

HELP WITH MY QUESTION!

OpenStudy (anonymous):

OpenStudy (anonymous):

Let D = diameter of big circle, d=diameter of little circles Then D=3d But Area of big circle=\[\pi(D/2)^2=81\pi\], so D=18, so d=6 Circumference of little circles = \[pid=6\pi\] QED

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