document.write( "Question 140879:
\n" ); document.write( "1. The height of a triangle is 4 feet less than the base. The area of the triangle is 16 square feet. Find the length of the base and height of the triangle. \r
\n" ); document.write( "\n" ); document.write( "2. The perimeter of a rectangle is 32 inches. The area of the rectangle is 48 square inches. Find the dimensions of the rectangle. \r
\n" ); document.write( "\n" ); document.write( "3. Find the radius of a cylinder whose volume is 2512 cubic centimeters and whose height is 8 centimeters. \r
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Algebra.Com's Answer #102591 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
the formula is bh/2=area
\n" ); document.write( "b*(b-4)/2=16
\n" ); document.write( "(b^2-4b)/2=16
\n" ); document.write( "b^2-4b=32
\n" ); document.write( "b^2-4b-32=0
\n" ); document.write( "(b-8)(b+4)=0
\n" ); document.write( "b-8=0
\n" ); document.write( "b=8 feet for the base.
\n" ); document.write( "h=8-4=4 for the height.
\n" ); document.write( "proof
\n" ); document.write( "8*4/2=16
\n" ); document.write( "32/2=16
\n" ); document.write( "16=16
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