Question

the perimeter of a rectangular garden is 420m. If the length of a garden is twice its breath . find the demensions of the garden .​

Answer 1

Answer:

Length = 140m

Breadth = 70m

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Step-by-step explanation:

L= 2 (B)

Perimeter = 420m

∵ Perimeter = 2(L+B)

⇒ 420 = 2 (2B+B)

⇒ 420 = 6B

⇒ Breadth = 420/6 = 70m

∵ Length = 2×Breadth

Length = 2×70 = 140 m

Answer 2

Answer:

Length = 140m, Breadth = 70m

Step-by-step explanation:

Perimeter = 420m

let the breadth be x

So , length = 2x and breadth = x

Perimeter = 2 ( l + b)

420m = 2(2x +x )

420m = 2 ( 3x)

420m = 6x

420m/6 = x

Therefore x = 70m

The dimensions are -

Length = 2x

= 140m

Breadth = x

70m

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