document.write( "Question 974592: A regular pentagon with sides of length 4 is inscribed in a circle. Find the area of the Pentagon \n" ); document.write( "
Algebra.Com's Answer #596497 by Alan3354(69443)\"\" \"About 
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A regular pentagon with sides of length 4 is inscribed in a circle. Find the area of the Pentagon
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\n" ); document.write( "\"Area+=+ns%5E2%2Acot%28180%2Fn%29%2F4\" n = # of sides, s = side length (of all regular polygons)
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\n" ); document.write( "\"Area+=+5%2A16%2Acot%2836%29%2F4+=+20cot%2836%29\"
\n" ); document.write( "Area =~ 27.528 sq units
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\n" ); document.write( "I'm not a proponent of memorizing formulas as there are too many of them.
\n" ); document.write( "I know this one, tho.
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\n" ); document.write( "The circle is not relevant.
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