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ICAR JRF Aquatic Environmental Management 29 Jun 2024Shift 1
MCQ (Single Correct) +4 −1
The area of an irregular polygon is calculated by using ——---—-
  • Computation of Irregular Land & Pond Areas:
  • In surveying and civil layout of aquaculture ponds, areas bounded by irregular curves or irregular polygonal perimeters are evaluated using numerical integration formulas.
  • Trapezoidal Rule: Assumes the irregular boundary between consecutive measured offsets consists of a series of straight trapezoidal chords:
$$\text{Area} = d \left(\frac{y_0 + y_n}{2} + y_1 + y_2 + \dots + y_{n-1}\right)$$

where $d$ is the common interval between perpendicular offsets ($y_i$).

  • Correct Option: Option 2 (Trapezoidal rule).
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