document.write( "Question 1107891: A rectangle is three times as long as it is wide and has the same perimeter as a square whose area is 100 square feet larger than that of the rectangle. What are the dimensions of both the rectangle and the square? \n" ); document.write( "
Algebra.Com's Answer #722953 by TeachMath(96)\"\" \"About 
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width of rectangle = 40/8, or 5 ft
\n" ); document.write( "Length of rectangle: 3(5), or 15 ft
\n" ); document.write( "One side of square: sqrt(100) = 10 ft
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