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6pi= M over 360, 2 times pi times 18

6pi= M over 360, 2 times pi times 18-example-1

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(M)/(360)\cdot2\pi\cdot18=6\pi\ \ \ \ |:\pi\\\\(M)/(360)\cdot36=6\\\\(M)/(10)=6\ \ \ \ |\cdot10\\\\\boxed{M=60}
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