document.write( "Question 1102972: In triangle KLM, if ∠K ≅ ∠L , KL = 9x – 40, LM = 7x – 37, and KM = 3x + 23, find x and the
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document.write( "measure of each side.
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Algebra.Com's Answer #717687 by Theo(13342)![]() ![]() You can put this solution on YOUR website! triangle KLM is an isosceles triangle with angle K congruent to angle L.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "therefore, the sides opposite these angles are congruent.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "side KM is opposite angle L. \n" ); document.write( "side ML is opposite angle K\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "therefore, side KM is congruent to side ML.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "the length of side KM is equal to 3x + 23 \n" ); document.write( "the length of side ML is equal to 7x - 37\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "therefore, 3x + 23 = 7x - 37\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "solve for x to get x = 15\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "3x + 23 = 3*15 + 23 = 68 = length of KM. \n" ); document.write( "7x - 37 = 7*15 - 37 = 68 = length of ML.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9x -40 = 9*15 - 40 = 95 = length of KL.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "your solution is that x = 15 and the length of each side is 68 for the two congruent sides and 95 for the side opposite the vertex of the isosceles triangle.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "here's some basic information regarding isosceles triangles plus other types.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "https://www.mathsisfun.com/definitions/isosceles-triangle.html \n" ); document.write( " \n" ); document.write( " |