Question

The sides of a rectangle are in the ratio 4:5 . If the perimeter of the rectangle is 90 cm , find its sides​

Answer 1

Answer:

Step-by-step explanation:

Let l and b =4x,5x

Acc to que

Perimeter of a rec=2(l+b)

90=2(4x+5x)

45=9x

45/9=x

x=5

Now

L=4x=4×5=20

B=5x=5×5=25

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