WAEC Mathematics 2018 Theory — Question 2

Question 2 of 23 from the West African Examinations Council (WAEC) Mathematics 2018 Theory paper, with the correct answer and a full explanation.

1.(b) A hunter walked 250m from point P to Q on a bearing of 042°. Calculate, correct to the nearest metre, the vertical distance he has moved.

Model answer

The vertical (northward) component of the displacement is 250cos42° = 250×0.7431 ≈ 186m.

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