Question

The length of rectangular park is twice the breadth if the perimeter isn180 cm find the length and the breadth

Answer 1

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But L = 2W

therefore

2(2W) + 2W = 180

4W + 2W = 180

6W = 180

W = 30

L = 2W

L = 2 x 30

L = 60

ANS Length 60m Breadth 30m

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Or use ratio

2L + 2W = 180

L:W = 2:1

2 + 1 = 3 parts

1 part 180/3 = 60

2 parts = 60 x 2 = 120

But these are 2L and 2W

So L = 120/2 = 60m

W = 60/2 = 30m

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Hungenahalli Sitaramarao Badarinath

Answered 26 September

The length of a rectangular park is twice its breadth. If the perimeter of park is 180m, what is its length and breadth?

Solution: 180/2 = 90

B + 2B = 90, or

3B = 90, or

B = 30

The breadth is 30 m and the length, 60 m. Answer.

Paul Zimmermann

Answered 27 September

The dimensions are length = 60, breadth = 30.

Solution:

L = 2*W (Given)

P = 2(L + W) (Formula for the perimeter of a rectangle)

Substituting, 180 = 2(2*W + W)

Solving, W = 30

Therefore, L = 60

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Surya Teja

Answered 26 September

Take length as x

Breadth as y

given x= 2y and

Perimeter= 180m

Perimeter of a rectangle is x+2y

So x+2y= 180 after substituting x=2y

We get 4y=180 so breadth=45m

And length = 90m

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Prakash Varma

Answered 26 September

Let the length be l and breadth b.

Given l = 2b.

Perimeter = 2(l + b).

180 = 2(2b + b)

Or 180 = 6b

Or b = 30 meters.

So l = 2b = 60 meters.

Nagarajan Chandra

Answered 26 September

Length of the park l = 2× breadth =2b

Perimeter = 2(l+b) = 2( 2b +b ) = 6b= 180 m

Breadth , b = 180/6 = 30 m

Length , l = 2b = 2× 30 = 60 m.

Paul Manhart

Answered 26 September

Parametric Equations.

L = 2W

P = 180 m

P = 2L + 2W

P = 4W + 2W = 6W

W = P/6 = 180/6 = 30

L = 60

Check.

60 + 60 + 30 + 30 = 180.

ok.

Answer 2

Step-by-step explanation:

Let the breadth=x,Length=2x

Perimeter of rectangle=2*(l+b)

=4x+2x=180

6x=180

x=180/6=30

x=30

So, Length=2x=2*30=60

Breadth=x=30