NextMockSearch exams, e.g. SSC CGL, UPPSC, Lekhpal
Railways PYQCBT 1 2016

RRB NTPC · Question 55

The midpoints of the side of a triangle PQR are marked as D, E, and F. If the perimeter of the triangle is 480 m, what will be the perimeter of the triangle DEF? A. 480 m B. 720 m C. 960 m D. 240 m

  1. D

  2. A

  3. B

  4. C

Show answer & explanation

Answer: (A) D

Explanation

The triangle formed by joining the midpoints of the sides has sides half as long (midpoint theorem), so its perimeter is 480/2 = 240 m.