Question

the perimeter of a rectangle is 320m. if the ratio of the length of the sides is 3:5, find the length and breadth of the rectangle?​

Answer 1

Step-by-step explanation:

2(l+b)=320

(l+b)=160

let l be 3x and b be 5x

3x+5x=160

8x=160

x=20

length = 60m

breadth = 100m

Answer 2

Answer:

Length = 60m

Breadth = 100m

Step-by-step explanation:

The perimeter of a rectangle = 320m

Let the ratios of length and breath of the rectangle be 3x, 5x

As we know the perimeter of the rectangle = 2(l+b)

So,

The perimeter of rectangle = 2(l+b)

320m = 2( 3x + 5x)

320/2m = 8x

160m = 8x

160/8m = x

20m = x

So,

Length = 3x

= 3 * 20m

= 60m

Breadth = 5x

= 5 * 20m

= 100m

Hence, the length and breath of the rectangle are 60m, 100m.

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