Question

The perimeter of a rectangle is 320 cm. If the ratio of the length of the sides is 3:5, find the
length and breadth of the rectangle.​

Answer 1

Answer:

let breadth =3x length=5x

2{3x+5x}=320

16x=320

x=320÷16

=20

breadth=60

length=100

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Answer 2

the length of rectangle= 60 cm

the breadth of rectangle= 100 cm.

Step-by-step explanation:

Let the length of the rectangle be 3x and breadth be 5x.

perimeter of rectangle= 2(3x+5x) = 320

6x+10x= 320

16x=320

x=320÷16

x=20

therefore, the length of rectangle = 60cm

the breadth of rectangle= 100 cm.