document.write( "Question 211729: Each side of an equilateral triangle is 4 cm longer than the side of a square. The sum of the perimeters of the two figures is 96 cm. How long is each side of the triangle? \n" ); document.write( "
Algebra.Com's Answer #160060 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! Each side of an equilateral triangle is 4 cm longer than the side of a square. The sum of the perimeters of the two figures is 96 cm. How long is each side of the triangle?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let each side of the square be S\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since each side of the triangle is 4 cm longer than each side of the square, then each side of the triangle is (S + 4)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The perimeter of the square would be 4S (all sides are equal)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The perimeter of the equilateral triangle is 3(S + 4), or 3S + 12\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Since the sum of both perimeters equals 96, then we have:\r \n" ); document.write( "\n" ); document.write( "4S + 3S + 12 = 96\r \n" ); document.write( "\n" ); document.write( "7S = 84\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Therefore, each side of the square, or S, equals 12, which makes each side of the triangle \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |