Question

Question number 16.

Answer 1

Answer:

sides= length: 40cm breadth: 30cm

Step-by-step explanation:

let length= x cm

and width =3/4 of x =3x/4

perimeter =140 cm

2(l+b) =140

2(x+3x/4) = 140

(4x+3x)/4 = 70

7x = 280

x = 40

thus sides are 40 cm and 3/4 ×40 = 30 cm