document.write( "Question 331713: the base of a triangle is 8cm greater than the height. the area is 42 cm spuared. find the height and length of the base. \n" ); document.write( "
Algebra.Com's Answer #237795 by mananth(16946)\"\" \"About 
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let height = h
\n" ); document.write( "base = h+8
\n" ); document.write( "..
\n" ); document.write( "Area of traingle = 1/2 * base * height
\n" ); document.write( "42= 1/2 * h * (h+8)
\n" ); document.write( "42=1/2*(h^2+8h)
\n" ); document.write( "84= h^2+8h
\n" ); document.write( "h^2+8h-84=0
\n" ); document.write( "h^2+14h-6h-84=0
\n" ); document.write( "h(h+14)-6(h+14)=0
\n" ); document.write( "(h+14)(h-6)=0
\n" ); document.write( "h= 6 Or -14
\n" ); document.write( "ignore negative value
\n" ); document.write( "h=6 cm
\n" ); document.write( "base = h+8=14 cm
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