document.write( "Question 198254: respected sir,\r
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document.write( "1] Area of a right-angled triangle is doubled while the base is reduced to its half. What % increase occurs in its height?\r
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document.write( "plz help me to solve this geometry problem...\r
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document.write( "thank u. \n" );
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Algebra.Com's Answer #148702 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Area of a right-angled triangle is doubled while the base is reduced to its half. What % increase occurs in its height? \n" ); document.write( "------------ \n" ); document.write( "A = bh/2 \n" ); document.write( "If b is half, then h has to be 4x to double the area. \n" ); document.write( "A = b*h/2 \n" ); document.write( "2A = (b/2)*h*x/2 = (x/2)*bh/2 \n" ); document.write( "x = 4A/A \n" ); document.write( "x = 4 \n" ); document.write( "-------- \n" ); document.write( "The factor of increase is 4. \n" ); document.write( "h increased from 1h to 4h, an increase of 3h --? 300% NOT 400% \n" ); document.write( "4 times as much is a 300% increase. \n" ); document.write( "Despite what dufuses on TV say, it is NOT a 400% increase. \n" ); document.write( " |