document.write( "Question 1101217: I need help with this question.\r
\n" ); document.write( "\n" ); document.write( "If the apothem is 12cm, and the perimeter is 81.6, then what is the area of a regular n-gon?
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Algebra.Com's Answer #715764 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "The area of a triangle is one-half the base times the height.

\n" ); document.write( "In a regular polygon with n sides, if you picture it as n congruent isosceles triangles, the apothem is the height of each triangle, and the perimeter of the polygon is the sum of the bases of all the triangles.

\n" ); document.write( "So the area of a regular a regular n-gon with apothem 12 and perimeter 81.6 is \"%281%2F2%29%2881.6%29%2812%29+=+489.6\"
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