Question

If the side of a square is increased by 20% ,its area is increased by k% find the value of 'k'

Answer 1

area is increased by 44%

Answer 2

Answer:

44%

Step-by-step explanation:

let the side=100x

area of square A =100x*100x=10000x²

if side is increased by 20% then new side=120x

so new area A1=120x*120x=14400x²

change in area=A1-A=14400x²-10000x²=4400x²

% change=100*4400/10000=44%