Question

find the breadth of a rectangle whose length is double of its breath and perimeter is 720m ​

Answer 1

Answer:

length will be 240m

and breadth will be 120 m

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Answer 2

Step-by-step explanation:

Given:

Length of the rectangle = Double of the breadth

Perimeter of the rectangle = 720m.

To find:

The Breadth of the rectangle.

Solution:

Let the breadth be 'x' metres

According to the question,

Length = 2×Breadth

===> Length = 2x metres

Formula: Perimeter of the rectangle = 2(Length+Breadth).

So, Perimeter = 2(2x+x)

===> 720 = 4x+2x

===> 6x = 720

===> x = $\dfrac{720}{6}$

===> x = 120 metres.

Length = 2x = 2×120 = 240m

Breadth = x = 120m.

Check: LHS = Perimeter = 720m

RHS = 2(Length+Breadth) = 2(120+240)=2(360)=720m

Hence, LHS = RHS

Therefore, the breadth of the rectangle is 720m.