Question

if the length and breadth of a rectangle are in ratio of 5:3 and its perimeter is 400m , then find its length and breadth​

Answer 1

Step-by-step explanation:

Let the common factor be x

The ration of l:b=5;3

So the length is 5x

The breadth is 3x

The perimeter is 2(l+b)=128

5x+3x=64

8x=64

x=8

So the length is 5(8)=40

The breadth is 3(8)=24

The area is 40×24=960cm

2.

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Answer 2

Answer:

LENGTH is 125 Meter

BREDTH is 75 meter

Step-by-step explanation:

let the length and breadth be X.

So, 5x and 3x are the length and breadth

Perimeter of a rectange = 2 × (length + breadth)

= 2(l+b)

= 2(5x + 3x)

= 2 × 8x

= 16 x

16x = 400m

= x = 400/16

x = 25

Length = 5 × 25 = 125 m

Breadth = 3 × 25 = 75 m