Question

The length and width of a rectangle is in the ratio of 3:5 and the perimeter of rectangle is 48cm .. Find its length and width​

Answer 1

Answer:

let length= 3x

breadth=5x

perimeter=2(l+b)= 48cm

        ⇒ 2(l+b)=48cm

         2(3x+5x)=48cm

         6x + 10x = 48cm

         16x=48cm

         x= 48/16 =3

length=3x=3*3= 9cm

breadth=5x=5*3= 15cm

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Answer 2

Given:-

• The length and width of rectangle is in the ratio of 3:5.

• The Perimeter if rectangle is 48cm

To Find:-

• The Length and width.

Formulae Used:-

• Perimeter = 2(L + B).

Now,

Let the ratio be "x".

Length of Rectangle = 3x

Breadth of Rectangle = 5x

Perimeter of Rectangle = 2(L + B).

48 = 2(3x + 5x)

48 = 16x

x = 48/16

x = 3.

Putting the value of "x" .

Length of the Rectangle = 3x = 9cm

Breadth of Rectangle = 5x = 15cm.

SOME MORE FORMULAES:-

• Area of Rectangle = L × B

• Area of Square = Side × Side

• Perimeter of Square = 4 × Side

• Area of Rhombus = Product of Diagonal/2