Question

The sides of a rectangle are in the ratio 2.5. If perimeter of rectangle is 210 cm then find the area
ponalis 10 cm then find the
of rectangle​

Answer 1

Answer:

lenght : breadth = 2:5

let value be x. , then 2x,5x

perimeter = 2(l+b)

210 = 2(2x + 5x )

210 = 2× 7x

14x = 210

x = 210 /14

x = 15

substituting value of x

therefore lenght = 2 x = 2× 15 = 30 cm

breadth = 5 x = 5 × 15 = 75 cm

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