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Posted by on Wednesday, August 5, 2009 at 11:11am.

A ring has an outsdie diameter of 3.85cm and an inside diameter of 2.63cm.Calculate its area?

  • Math - , Wednesday, August 5, 2009 at 11:18am

    Find the area of each circle.

    A = pi * r^2

    Then subtract the smaller from the larger area. That will be the area of the ring.

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