SOLUTION: The lenght of the side of a square is increase by 50%. By what % is the area of the square increase.

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Question 443513: The lenght of the side of a square is increase by 50%. By what % is the area of the square increase.
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
The length of the side of a square is increase by 50%. By what % is the area of the square increase.
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If side = "s", area = s^2.
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If s is increased by 50% you get (1.5s)
Area will be (1.5s)^2 = 2.25s^2
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Increase = 2.25s^2-s^2 = 1.25s^2
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% increase = (1.25s^2)/s^2 = 1.25 = 125% increase
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Cheers,
Stan H.