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Solutions
Given:
Length of the rectangular field = 77 m
Breadth of the rectangular field = 50 m
Area of the rectangular field = Area of the circular field

Formula Used:
Area of rectangle = Length × Breadth
Area of circle = πr2
Perimeter of circle = 2π
Solution:
Area of rectangular field = 77 × 50
Area of rectangular field = 3850 m2
Area of circular field = 3850 m2
Perimeter of circular field = 2πr
Perimeter of circular field = 2 × 227 227 × 35
=> Perimeter of circular field = 2 × 5 × 22
=> Perimeter of circular field = 220 m
The perimeter of the circular field is 220 m.