Area of path = Area of (pond+path) - Area of pond
The area of the pond with the path: The radius = (4 + 2.5)m = 6.5m
Area = π×r2 = 227×6.52≈eq132.79m2
Area of the pond = 227×42≈eq50.29m2
Area of the path = (132.79−50.29)m2=82.50m2
