document.write( "Question 489606: the altitude of a triangle is 4m longer than the base. If its area is 126 square meter, find the length of the altitude.\r
\n" ); document.write( "\n" ); document.write( "can somebody answer this problem..thank you!
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Algebra.Com's Answer #333703 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
base =x
\n" ); document.write( "altitude= (x+4)\r
\n" ); document.write( "\n" ); document.write( "1/2*x*(x+4)=126
\n" ); document.write( "x^2+4x=252
\n" ); document.write( "x^2+4x-252=0\r
\n" ); document.write( "\n" ); document.write( "x^2+18x-14x-252=0
\n" ); document.write( "x(x+18)-14(x+18)=0
\n" ); document.write( "(x+18)(x-14)=0
\n" ); document.write( "x= 14m which is positive.
\n" ); document.write( "base = 14 height = 14+4=18m
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