Two angles of a triangle are 31° and 43°. What is the third angle?

Question: Two angles of a triangle are 31° and 43°. What is the third angle?

  1. 107°
  2. 106°
  3. 105°
  4. 108°

Correct Answer: B — 106°

Explanation: The three interior angles of a triangle total 180°.
Using the values in this question gives 106° as the correct answer.

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