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WAEC Mathematics 2011 Question 12

Question 12

Bearings

Esther was facing S 20°W. She turned 90° in the clockwise direction. What direction is she facing?

  1. A.N 70° W
  2. B.S 70° E
  3. C.N 20° W
  4. D.S 20° E
Show the answer and explanation

Answer: A (N 70° W)

Explanation

S 20°W is a bearing of 200°. Turning 90° clockwise gives 290°, which is 70° west of north: N 70° W.