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Posted by on Tuesday, March 1, 2011 at 8:33pm.

a circular coin has radius of 8.2 what is the circumference rounded to the nearest tenth? please show work

  • math - , Tuesday, March 1, 2011 at 10:02pm

    Circumference
    = 2πr
    = 2*3.14159*8.2 (mm, I suppose)
    = 51.522 mm
    = 51.5 mm (rounded to the nearest 1/10th)

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