Question #03095

1 Answer
MJ
Jan 29, 2018

44%

Explanation:

Length of side of square = 30 cm

Increase in length = 20%

So, new length = 30xx 120/100 = 36 cm

Now, area of original square = 30xx30 = 900 cm^2

Area of square with 20% increased length = 36xx36 = 1296cm^2

Change in area = 1296-900 = 396 cm^2 (we divide by 900 and nor by 1296 because the increase in area or change in area is as compared to the original area)

Percent increase in area = 396/900 xx100 = 44%

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