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1 markPaper 1 · Multiple choiceSine and Cosine Rules

CSEC Mathematics · May/June 2015 · Paper 1 · Question Q57

Item 57 refers to triangle ABC below. In the triangle, not drawn to scale, angle BAC = 30^\circ and AB = 40\text{ m}. The length BC, in metres, is

  1. (A)40\sin 30^\circ
  2. (B)40\tan 30^\circ
  3. (C)40\sin 60^\circ
  4. (D)40\tan 60^\circ

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