Railways PYQCBT 1 2016

RRB NTPC · Question 40

If the ratio of the angles of a triangle is 3 : 5 : 7, find the value of the largest angle. A. 36° B. 60° C. 84° D. 15°

  1. B

  2. A

  3. C

  4. D

Show answer & explanation

Answer: (C) C

Explanation

3 + 5 + 7 = 15 parts = 180°, so 1 part = 12°. The largest angle = 7 × 12° = 84°.