Question

the sides of a rectangle are in the ratio 5:4 and 90cm. Find its length and breath

Answer 1

Step-by-step explanation:

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Answer 2

Answer:

let the side=4x:5x

perimeter of rectangle=2(l+b)

90=2(4x+5x)

90=2×9x

90=18x

x=90/18

x=5

4x=4×5=20

5x=5×5=25