Question

1. The sides of a rectangle are in the ratio 5: 4. its perimeter is 72 cm, then its tength is
(a) 40 cm
(b) 20 om
(c) 30 cm
(d) 60 cm​

Answer 1

Answer:

20 cm

Step-by-step explanation:

Let the sides be in the form of x

Length : 5x

Breadth : 4x

so, perimeter of the rectangle is 2 X ( L+ B)

Perimeter will be

2 X ( 5x + 4x ) : 72

2 X ( 9x ) : 72

18x : 72

x : 72/18

x : 4cm

So, Length will be

    5x : 5 X 4 : 20cm

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