document.write( "Question 286283: how many sides does a polygon have if it 540 degrees
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Algebra.Com's Answer #207595 by dabanfield(803)\"\" \"About 
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Use the theorem that says that if n is the number of sides of a polygon the sum of the interior angles is (n-2)*180.\r
\n" ); document.write( "\n" ); document.write( "So we have:\r
\n" ); document.write( "\n" ); document.write( "(n-2)*180 = 540\r
\n" ); document.write( "\n" ); document.write( "180n - 360 = 540
\n" ); document.write( "180n = 540 + 360
\n" ); document.write( "180n = 900
\n" ); document.write( "n = 5\r
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