Question

in ( triangle P Q R ) ( operatorname{LOPR}=operatorname{LORP}(text {LOPposite } 60 )
equal side are ( left.L P=m R=frac{1}{2} Q P(text { given }) quad text { equal }right) )
( P N=N R text { Emidpoint }) ) ( therefore quad triangle angle P N cong triangle N M R quad ) by ( left(S A S^{prime} text { Propeiny }right) )
( therefore L N=M N ) (by congruency) tence Proved

# 2. In a APOR, if p ''9 222 POR, if PQ = QR and L, M and N are the mid-points of the sides PQ, respectively. Prove that LN = MN. ve that the medians of an equilateral triangle are canal ides PQ, QR and I Top.ch oint

Solution