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WAEC Mathematics 1988 Question 13

Question 13

Bearings

Points P and Q are respectively 24m north and 7m east of point R. Calculate |PQ| in metres

  1. A.20
  2. B.24
  3. C.25
  4. D.31
  5. E.84
Show the answer and explanation

Answer: C (25)

Explanation

PRQ is a right angle at R, so |PQ| = √(24² + 7²) = √625 = 25 m.