If each side of a rectangle is increased by 100%, by what % the area increases? Answers:
A) 100%
B) 200%
C) 250%
D) 300%
E) 400%
if length is l and width is b then area=l*b   now new l and b is 2l and 2b respectively.   so new area is=4*l*b   % increase= 300%   ANSWER:300%
<result>D</result>
If each side of a rectangle is increased by 100%, by what % the area increases?