Question

If each side of a triangle is doubled then find the percentage increase in its area
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Answer 1

The area of a triangle is given by (1/2)*base*height. If the length of the sides becomes double so does the height. As base and height are becoming double the new area is 4 times the original area. When the length of the sides of a triangle double, the area becomes quadruple

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Answer 2

the percentage increase in the area of a triangle is 300%

300%