SSC CPO 11 Dec 2019 Shift 1 Paper

Question : 137 of 200

Marks: +1, -0

ΔABC is an equilateral triangle in which D, E and F are the points on side BC, AC and AB, respectively, such that AD ⊥ BC, BE ⊥ AC and CF ⊥ AB, which of the following is true?