document.write( "Question 1080243: A triangular prism has base edges 4cm, 6cm, and 7cm long. Its lateral area is 408cm^2. What is the height? \n" ); document.write( "
Algebra.Com's Answer #694431 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! The perimeter of the triangle base is P = a+b+c = 4+6+7 = 17 cm long.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The lateral surface area (abbreviated LSA) of any prism can be found using this formula\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "LSA = P*h\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "where P is the perimeter along the base and h is the height of the prism. \n" ); document.write( "We're given the lateral area of 408, so LSA = 408. \n" ); document.write( "Let's use that LSA value, along with P = 17 as well to solve for h.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "LSA = P*h \n" ); document.write( "408 = 17*h \n" ); document.write( "408/17 = 17*h/17 \n" ); document.write( "24 = h \n" ); document.write( "h = 24\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The height is 24 centimeters \n" ); document.write( " \n" ); document.write( " |