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Problem 555

If the length of a side of a regular polygon of 12 sides is represented by s, and the length of its apothem is represented by a , find the area of the polygon, \(\mathrm{A}\), in terms of a and \(\mathrm{s}\).

Expert verified

The area of the regular 12-sided polygon in terms of s and a is: \[\mathrm{A} = 6 s a\]

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