Math CentralQuandaries & Queries


Find the formula for calculating the length of the side of a pentagon given the radius of the circle that encloses it. Once you find the formula, find the length of the side of a pentagon which is enclosed in a circle 12 cm in diameter. So I need to know the formula, and the length of the side of the pentagon. Thank you!!

Hi Amanda,

I don't carry many formulas around in my head but I can help you to develop it. Look at the response Stephen and I gave to another student named Admire when she asked a similar question.


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