Blah B.

asked • 04/01/18

How do I solve this calculus problem?

Peter can't remember the formula for the area of a circle. He decides to approximate the area of a circle by circumscribing a regular  18 -gon around the circle. If his approximation of the area is  79 , what is the radius of the circle?

1 Expert Answer

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Doug C. answered • 12d

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