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The sides of a square are increased by 72%. Find the percentage increase in its area.

The sides of a square are increased by 72%. Find the percentage increase in its area. Correct Answer 195.84%

Let the side of the square be 10. The initial area of the square = 10 * 10 = 100 The change in sides = 72% The change = 10 + 72% of 10 = 10 + 7.2 = 17.2 New area of the square = 17.2 * 17.2 = 295.84 Change in the area of the square = 295.84 – 100 = 195.84 Percentage change = 195.84 / 100 * 100 = 195.84%

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