WAEC Agricultural Science 1996 Question 20

Question 20

Farm Surveying and Planning

The diagram represents a chain measurement drawing of the school farmland having an obstruction at point C. Which of the following describes the method used to calculate the distance CE?

Diagram for this question
  1. A.Similar triangular method
  2. B.Double perpendicular
  3. C.Right-angled method
  4. D.Quadrangle
  5. E.Chain method.
Show the answer and explanation

Answer: C (Right-angled method)

Explanation

A right-angled triangle is set out round the obstacle and Pythagoras is used.