Question

the length of a room is three times of its width. if it's area is 12m² then find the perimeter of the room
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Answer 1

Step-by-step explanation:

Let the breadth be:x

A.T.Q. l=3x

area is 12,so

a=l*b

12=3x*x

12=3x²

x=2m

peri =2(l+b)

peri=16m³