Question

The area<br />of a rectangle with<br />length 1 & breadth b is​

Answer 1

Answer:

area of rectangle : length * breadth

Step-by-step explanation:

ie 1 * b

area = b

Answer 2

Answer:

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Step-by-step explanation:

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 )