# In figure 5.41, seg PD is a median of ΔPQR, Point T is the midpoint of seg PD. Produced QT intersects PR at M. Show that [Hint : draw DN || QM.]

PD is median so QD = DR (median divides the side opposite to vertex into equal halves)

T is mid-point of PD

PT = TD

In ΔPDN

T is mid-point and is to TM (by construction)

TM is mid-point of PN

PM =MN……………….1

Similarly in ΔQMR

QM DN (construction)

D is mid –point of QR

MN = NR…………………..2

From 1 and 2

PM = MN = NR

Or PM = 1/3 PR

hence proved

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