Question

side of rectangle is in the ratio 4 is to 5 if the perimeter of the rectangle is 90 CM then find the side of the rectangle​

Answer 1

Question:

side of rectangle is in the ratio 4 is to 5 if the perimeter of the rectangle is 90 CM then find the side of the rectangle.

Answer:

let the ratio be x

$perimeter = 2(l + b) \\ \\ 90 = 2(4x + 5x) \\ \\ 45 = 9x \\ \\ x = 5 \\ \\ \\ \\ lenghth = 4 \times 5 = 20 \: cm \\ \\ breadth \: = 5 \times 5 = 25 \: cm$

Answer 2

Answer:

let side be x

then...

2(4x+5x)=90

18x=90

x=90÷18

hence,x=5

the side of rectangle is

lenght= 20cm

breadth=25cm

Step-by-step explanation:

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