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\pi \times r^{2}π×r2 = 227×6.52≈132.79m2\; \frac{22}{7} \times 6.5^{2} \approx 132.79\mathrm{m}^{2}722×6.52≈132.79m2
Area of the pond = 227×42≈50.29m2\; \frac{22}{7} \times 4^{2} \approx 50.29\mathrm{m}^{2}722×42≈50.29m2
Area of the path = (132.79−50.29)m2=82.50m2(132.79 - 50.29)\mathrm{m}^{2} = 82.50\mathrm{m}^{2}(132.79−50.29)m2=82.50m2
