document.write( "Question 362249: How many sides does a polygon have if its angle sum is 1080 degrees? \n" ); document.write( "
Algebra.Com's Answer #258138 by nyc_function(2741)\"\" \"About 
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The interior angles of a polygon add up to 180(n-2). \r
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\n" ); document.write( "\n" ); document.write( "180(n-2) = 1080 \r
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\n" ); document.write( "\n" ); document.write( "180n - 360 = 1080\r
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\n" ); document.write( "\n" ); document.write( "180n = 1080 + 360\r
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\n" ); document.write( "\n" ); document.write( "180n = 1440\r
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\n" ); document.write( "\n" ); document.write( "n = 1440/180\r
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\n" ); document.write( "\n" ); document.write( "n = 8\r
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\n" ); document.write( "\n" ); document.write( "The answer is 8 sides.\r
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