Question

Please answer this question

Answer 1

Area of square = x^2

If length is multiplied by 3, then each side of square is now 3x

new Area = (3x)^2 = (3x)*(3x) = 9x^2

So the Area has increased by a factor of 9.

In general, the Area will always increase by a factor which is the square of the factor applied to the side length.