Question

The sides of a rectangle are in the ratio 5:4.if it’s perimeter is 72cm ,then it’s length is

Answer 1

Answer:

5x,4x=72

20x=72

x=72÷20

x=3.6

Answer 2

Answer:

let the sides of rectangle be 5x and 4x

perimeter=2(L+B)

2(5x + 4x)

2×9x = 72cm

18x = 72

x = 4 cm

length = 5× 4= 20cm

breadth = 4×4= 16cm