Asked by Shehzad
If each side of a traingle is decreased by 10% then find the percentage decrease in the area?
Answers
Answered by
oobleck
for similar figures, the area changes as the square of the scale factor.
So, since each side changes by 0.9, the area changes by 0.9^2 = 0.81
That is, the area decreases by 19%
So, since each side changes by 0.9, the area changes by 0.9^2 = 0.81
That is, the area decreases by 19%
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