Answer: Hence the dimensions are 56 ft and 40 ft.
Step-by-step explanation:
Alright, lets get started.
The ratio of sides of rectangle is given as 7:5.
It means, the length of rectangle is : 
It means, the width of rectangle is : 
So the perimeter of rectangle will be : 
Plugging the value of sides length and width,
the perimeter of rectangle will be : 
the perimeter of rectangle will be : 
the perimeter of rectangle will be : 
As per question, the given perimeter is 192, so

Dividing 24 in both sides,


Hence the length of rectangle will be : 
Hence the width of rectangle will be : 
Hence the dimensions are 56 ft and 40 ft. : Answer
Hope it will help :)