Question

The length and breadth of a rectangular field are 40m and 10 m respectively. if the side of a square is 20 m, then find the ratio of their perimeters

Answer 1

perimeter of rectangle2(40+10)=100
perimeter of square 4×20=80
ratio 100÷80=5/4

Answer 2

Length of rectangle = 40m
Breadth of rectangle =10m
Side of the square= 20m

since
Perimeter of rectangle=2(l+b)
=2(40+10)
=2(50)
=100 m

Perimeter of square =4× side
=4×20
=80m
so
perimeter of rectangle ratio perimeter of square
=>100/80
=>5/4
=>5:4