In triangle , angle , side opposite angle is , and side . Using the sine rule, calculate the exact value of .

Answer and explanation

Correct answer: B.

  1. Step 1: State the Sine Rule: .
  2. Step 2: Substitute known values: . Multiply by 10: .
Answer
.
Why not the others: '' inverts the ratio; '' is the value of ; '' computes .

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