Question

find the length of a rectangle whose perimeter is 90 cm and sides are in the ratio of 5:4.​

Answer 1

Answer:

ow

let the sides are 5x and 4x

perimeter is given =90 cm

A\q

perimeter = 2 (l+b)

90= 2(5x +4x )

$90 = 2 \times 9x \\ 9x = 45 \\ x = \frac{45}{9 } \\ x = 5cm$

now lenght of rectangle= 5x =25cm

breadth =4x =20cm

Answer 2

Step-by-step explanation:

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