What is the solution of Two sides of a rectangle differ by 3.5 cm find the dimensions of the rectangle if its perimeter is 67 cm?
Suppose the shorter side is x cm.Then the longer side is x + 3.5 cm.
Therefore the perimeter is 2*(x + x + 3.5) = 4x + 7 cm.
Now 4x + 7 = 67 so that 4x = 60 and x = 15
and then x + 3.5 = 18.5
Therefore the sides of the rectangles are 15 cm and 18.5 cm.
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