Easy MCQ +4 / -1

In any triangle ABC, a/sin A = b/sin B = c/sin C is:

  1. A Sine rule Correct answer
  2. B Cosine rule
  3. C Projection rule
  4. D Half-angle formula

Solution

a/sin A = b/sin B = c/sin C = 2R, where R is circumradius. This is the Law of Sines (Sine rule).

About this question

Subject: Mathematics · Chapter: Trigonometric Functions · Topic: Properties of Triangles

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