Question

6. What will happen to the area of a rectangle if its
(i) Length and breadth are trebled.
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Answer 1

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➡️Let the original length of the rectangle = l and its original breadth = b

∴ its original area = length x breadth i.e A = l – b

Since,

Increased length = 3l

and, increased breadth = 3b

∴ New area = 3l x 3b = 9 x l x b [∵A = l x b]

⇒ Area of the new rectangle = 9 times than area of original rectangle.⬅️

$\textit{Hope this helps you}$

$\huge\underline{\mathbb\red{❥︎T}\green{H}\mathbb\blue{A}\purple{N}\mathbb\orange{K}\pink{S}}\:$

Answer 2

Step by step explaination:

ATQ

Length is trebeled so now new length = 3*length

Breadth is trebeled so now new breadth =3*breadth

Area of rectangle=breadth*length

So new area will be= (3*length )*(3*breadth)

It means Area of rectangle =9*length * breadth.

Answer:

So the answer will be that

the area of rectangle will become 9 times