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## Answers

The Brainliest Answer!

Let the length be 7x

Breadth be 5x

Then perimeter = 2(l+b)

= 2(7x +5x)

But given that the perimeter = 240

⇒ 2(7x+5x) =240

⇒ 2(12x) = 240

⇒ 12x = 240/2

⇒ 12x = 120

⇒ x =120/12

∴ x = 10

The length = 7x =7(10) = 70 units

The breadth = 5x = 5(10) =50units

2 (7x + 5x) = 240

( 12x ) = 240/2

x = 120/12

x = 10

length = l = 7x = = 7(10) = 70

breadth = b = 5x = 5 (10) = 50

lenght is 70 and breadth is 50.

lenght is 70 and breadth is 50.