document.write( "Question 848199: The base of the triangle is 5 cm greater than the height. The area is 33 cm^2. Find the height and the length of the base. \r
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document.write( "The height of the triangle is ___ cm\r
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document.write( "The base of the triangle is ___ cm \n" );
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Algebra.Com's Answer #510939 by swincher4391(1107)![]() ![]() You can put this solution on YOUR website! A = 1/2 * B * H\r \n" ); document.write( "\n" ); document.write( "33 = 1/2 * B * H\r \n" ); document.write( "\n" ); document.write( "B = H + 5\r \n" ); document.write( "\n" ); document.write( "33 = (1/2)* (H+5) * H (don't like fractions, multiply by 2)\r \n" ); document.write( "\n" ); document.write( "66 = (H+5)*H\r \n" ); document.write( "\n" ); document.write( "66 = H^2 + 5H\r \n" ); document.write( "\n" ); document.write( "H^2 +5H - 66 = 0\r \n" ); document.write( "\n" ); document.write( "(H+11)(H-6) = 0 \r \n" ); document.write( "\n" ); document.write( "H = -11 H = 6 <- we can't have a negative height, so h = 6\r \n" ); document.write( "\n" ); document.write( "Then B = 6 + 5 = 11\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The height is 6 cm.\r \n" ); document.write( "\n" ); document.write( "The base is 11 cm. \n" ); document.write( " |