Question

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Answer 1

Answer:

21

is the answer.......

Answer 2

Question ⤵️

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Answer ⤵️

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

⇒ Area of a rectangle =length×breadth

=xy

⇒ Area of a rectangle =xycm²

---- ( 1 )

Now, when length and breadth gets double.

The length and breadth becomes 2x and 2y

⇒ Area of a rectangle =2x×2y

=4xycm²

⇒ Area of a rectangle=4xycm²

--- ( 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.

Hope it helps you ✌️

Step-by-step explanation:

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