Question

What is the percentage increase in area of ​​a triangle by doubling the length of each side?​

Answer 1

Answer:

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Answer 2

In similar triangles, ratio of areas is equal to ratio of the square of corresponding sides. When sides are doubled, the area of new triangle will always be 4 times the original, the change in area will be 3 times. Hence the % change will always be 300% irrespective of the type of triangle.