SOLUTION: One of the sides of a square equals the long side of a rectangle. The short side of the rectangle is 2cm. The long side of the rectangle is 50 per cent longer that its short side.

Algebra ->  Surface-area -> SOLUTION: One of the sides of a square equals the long side of a rectangle. The short side of the rectangle is 2cm. The long side of the rectangle is 50 per cent longer that its short side.       Log On


   

Question 1089691: One of the sides of a square equals the long side of a rectangle. The short side of the rectangle is 2cm. The long side of the rectangle is 50 per cent longer that its short side. Find the increase of the square side in percentages, so the surface of the square will be 81cm?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
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A square has no "surface".

It has the area, instead.


And this area measures in square centimeters, not in centimeters.