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WAEC Agricultural Science 2020 Question 7

Question 7

Farm Surveying and Planning

The diagram below illustrates a surveyed school farmland.
Calculate the area of the farmland.

Diagram for this question
  1. A.0.32 ha
  2. B.0.36 ha
  3. C.0.47 ha
  4. D.0.52 ha
Show the answer and explanation

Answer: B (0.36 ha)

Explanation

It is a trapezium: ½ × (70 + 90) × 45 = 3,600 m² = 0.36 ha.