document.write( "Question 734055: The height of a triangle is 5 more than the base. If the area of the triangle is 18 square units then how long is the base of the triangle? \n" ); document.write( "
Algebra.Com's Answer #448723 by checkley79(3341)\"\" \"About 
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area=bh/2
\n" ); document.write( "h=b+5
\n" ); document.write( "18=b(b+5)/2
\n" ); document.write( "18=(b^2+5b)/2 cross multiply.
\n" ); document.write( "b^2+5b=18*2
\n" ); document.write( "b^2+5b=36
\n" ); document.write( "b^2+5b-36=0
\n" ); document.write( "(b+9)(b-4)=0
\n" ); document.write( "b-4=0
\n" ); document.write( "b=4 ans. for the base.
\n" ); document.write( "h=4+5=9 ans. for the height.
\n" ); document.write( "Proof:
\n" ); document.write( "18=4*9/2
\n" ); document.write( "18=36/2
\n" ); document.write( "18=18
\n" ); document.write( "
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