Question 1006982: The length of a rectangle is increased by 10% and the width is increased by 10%. find the percentage change in area. Answer by fractalier(6550) (Show Source):
You can put this solution on YOUR website! The old length and width are L and W.
The new length and width are (1.1)L and (1.1)W.
The old area is A = LW.
The new area is A = (1.1)L*(1.1)W = (1.21)LW
or an increase of 21%.
