The sides of a rectangular park are in the ratio 4:3.If it's area is 1728m square :find its perimeter
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Answer:
Step-by-step explanation:
Let the side be x.
Area = l*b
=> 1728 = 4x*3x
=> 1728 = 12x²
=> 1728/12 = x²
=> 144 = x²
=> 12 = x
Sides: 4x = 4*12 = 48m
3x = 3*12 = 36m
Perimeter = 2(l+b)
=> 2(48+36)
=> 2(84)
=> 168m
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