Math Questions for SSC CHSL and RRB NTPC EXAM

Q1. If ABC is an equilateral triangle and P, Q, R respectively denote the middle points of AB, BC, CA then:
(a) PQ + QR + RP = 2AB
(b) PQR must be a right-angled triangle
(c) PQR must be an equilateral triangle
(d) PQ + QR + PR = AB