Question

the perimeter of a rectangle is 13 cm if its width is 11/4 find its length​

Answer 1

Let the length be l

Given width = 11/4cm

Perimeter of rectangle = 13cm

=> 2( l + b) = 13

=> 2l + 11/2 = 13

=> 2l = 15/2

=> l = 15/4cm

Answer 2

Answer:

Perimeter =13cm

let the length be x

breadth will be 11/4x

Perimeter of rectangle = 2(l+b)

13= 2(x+11/4x)

13*4 = 2x + 11x

52 = 13 x

x = 52/13

x= 4

length = 4 cm

breadth = 11/4*4

= 11 cm