document.write( "Question 1125767: The sum of the sides of two polygons is 9 and the sum of its diagonals is7. Find the numberof sides of its polygon \n" ); document.write( "
Algebra.Com's Answer #742179 by greenestamps(13200)\"\" \"About 
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\n" ); document.write( "Obviously if an algebraic solution is not required, you would solve this quickly with logical analysis.

\n" ); document.write( "The number of diagonals in a polygon with 3 sides is \"%283%2A0%29%2F2\" = 0
\n" ); document.write( "The number of diagonals in a polygon with 4 sides is \"%284%2A1%29%2F2\" = 2
\n" ); document.write( "The number of diagonals in a polygon with 5 sides is \"%285%2A2%29%2F2\" = 5
\n" ); document.write( "The number of diagonals in a polygon with 6 sides is \"%286%2A3%29%2F2\" = 9

\n" ); document.write( "If the total number of diagonals in two polygons is 7, then the polygons must have 4 and 5 sides.
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