Question

If the length of a rectangle is double keeping the breadth of same then its area is​

Answer 1

Let length of and breadth of a rectangle are xcm and ycm

⇒ Area of a rectangle =length×breadth

=xy

⇒ Area of a rectangle =xycm

2

---- ( 1 )

Now, when length and breadth gets double.

The length and breadth becomes 2x and 2y

⇒ Area of a rectangle =2x×2y

=4xycm

2

⇒ Area of a rectangle=4xycm

2

--- ( 2 )

Comparing ( 1 ) and ( 2 ) we can see,

⇒ If the length and the breadth of a rectangle are doubled then its area becomes 4 times.

I hope it helps you plzzz mark me has brainliest

Answer 2

if length=l

breadth=b

area=l×b

when length is doubled

l=2l

New area

=2l×b

hope this answers your question