SOLUTION: The base of a triangle is decreased by 20%. How much must you increase the height to keep the area of the triangle the same? Express your answer as a percent.

Question 672801: The base of a triangle is decreased by 20%. How much must you increase the height to keep the area of the triangle the same? Express your answer as a percent.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
The base of a triangle is decreased by 20%. How much must you increase the height to keep the area of the triangle the same? Express your answer as a percent.
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Area = (1/2)(base)(height)
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To keep the same Area,
A = (1/2)(0.8 base)((1/0.8)height)
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1/0.8 = 10/8 = 5/4 = 1.25 = 125%
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Increase the height by 25%
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Cheers,
Stan H.
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