Question

if the lenghth and breadth are doubled by what percentage is the area increased​

Answer 1

Answer:

Answer: It is 300% of the original area

Let initial length  =l  

Initial width  =w  

⟹ initial area =lw  

Final length  =2l  

Final width  =2w  

⟹ final area =(2l)(2w)=4lw  

% increase=increaseinitial×100  

% increase=3lwlw×100  

% increase=300 %