The area bounded by the waterline of a reservoir is determined by using planimeter and the following are the results: A1 = 20,000 m2; A2 = 18,000 m2; A3 = 14,000 m2; A4 = 10,000 m2; and A5 = 8,000 m2. If the contour interval is 2 m, find the capacity of

The area bounded by the waterline of a reservoir is determined by using planimeter and the following are the results: A₁ = 20,000 m²; A₂ = 18,000 m²; A₃ = 14,000 m²; A₄ = 10,000 m²; and A₅ = 8,000 m². If the contour interval is 2 m, find the capacity of the reservoir (in cubic meter) using end area method.