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Railways PYQCBT 1 2020

RRB NTPC · Question 26

The radius of the circumcircle of an equilateral triangle of √3 unit side, is:

  1. 1/4 unit

  2. 1 unit

  3. 2/3 unit

  4. 1/2 unit

Show answer & explanation

Answer: (B) 1 unit

Explanation

For an equilateral triangle of side a, the circumradius R = a/√3. With a = √3, R = 1 unit.