Question 116872: The Perimeter of a rectangle is 42 cm. One side is 9 cm longer than the other side. Find the lengths of the sides. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! The Perimeter of a rectangle is 42 cm. One side is 9 cm longer than the other side. Find the lengths of the sides.
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Let one of the sides by "x" cm long
Let the longer side be "x+9" cm long
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Perimeter = 2(length + width)
42 = 2 (x + x+9)
21 = 2x+9
2x = 12
x = 6 cm
x+9 = 15 cm
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Cheers,
Stan H.
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