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Railways PYQCBT 1 2016

RRB NTPC · Question 33

If the angles of a triangle are in the ratio of 2 : 5 : 8, then find the value of the smallest angle.

  1. 36°

  2. 18°

  3. 12°

  4. 24°

Show answer & explanation

Answer: (D) 24°

Explanation

The angles 2x, 5x and 8x add to 15x = 180°, so x = 12°. The smallest angle = 2 × 12 = 24°.