document.write( "Question 1180833: The sides of a triangle are 70cm, 80cm, and 90 cm. Compute the length of the altitude to the 80-cm side. \n" ); document.write( "
Algebra.Com's Answer #810632 by ikleyn(52781)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "            The numbers in the solution by @mananth are incorrect.\r
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document.write( "sides of a triangle are 70cm, 80cm, and 90 cm.\r\n" );
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document.write( "Use the Heron's formula\r\n" );
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document.write( "    area = \"+sqrt%28s%28s-a%29%28s-b%29%28s-c%29%29\"\r\n" );
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document.write( "s= 1/2 perimeter = (70+80+90)/2 = 120 cm\r\n" );
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document.write( "a, b, c are the sides of triangle\r\n" );
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document.write( "    area = \"+sqrt%28120%28120-70%29%28120-80%29%28120-90%29%29\"  cm^2\r\n" );
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document.write( "Area = 2683.28  cm^2\r\n" );
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document.write( "Area = 1/2 base * height\r\n" );
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document.write( "2683.28= (1/2)*80*height\r\n" );
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document.write( "height = 67.08 cm.    the CORRECT ANSWER\r\n" );
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