document.write( "Question 606387: Find the height of triangle KLM.\r
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document.write( "They told me the triangle is isosceles, so KL and LM are congruent. The third side, KM, is 42cm. The perimeter is 112cm. From that, I figured out that KL and LM are 35cm. I'm having trouble finding the height... I tried using sine, cosine, and tangent, but I was having trouble. I split the triangle into two and tried to find a sine, cosine, or tangent of the 90 degree angle. \n" );
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Algebra.Com's Answer #382055 by Earlsdon(6294)![]() ![]() ![]() You can put this solution on YOUR website! Your assumptions are good so far! \n" ); document.write( "Now drop a line from the vertex L perpendicular to the base (KM)at point Q. This will bisect KM at Q and you will have two congruent right triangles KLQ and MLQ. \n" ); document.write( "The hypotenuse of these right triangles is 35cm and the base of one of the right triangles is \n" ); document.write( "Now you can use the Pythgorean theorem to find the height (h). \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |