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JAMB Mathematics 1987 Question 44

Question 44

Constructions

The figure above is an example of the construction of a

Diagram for this question
  1. A.perpendicular bisector of a given straight line
  2. B.perpendicular from a given point to a given line
  3. C.perpendicular to a line from a given point on that line.
  4. D.given angle.
Show the answer and explanation

Answer: B (perpendicular from a given point to a given line)

Explanation

An arc centred at the point P cuts the line at Q and R. Equal arcs from Q and R meet below the line, and joining P to that point gives the perpendicular from P to the line.