document.write( "Question 860587: The ratio of internal and external angle of a regular polygon is 3:2, then the number of sides of polygon is ? \n" ); document.write( "
Algebra.Com's Answer #518542 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi,
\n" ); document.write( "Let x represent the constant of proportionality
\n" ); document.write( " 3x + 2x = 180
\n" ); document.write( " 5x = 180
\n" ); document.write( " x = 36
\n" ); document.write( "exterior angle = \"2%2A36\" = 72
\n" ); document.write( " 360/72 = number of sides = 5
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