Given:
PQRS is a parallelogram.
M is the midpoint of QR.
SM is drawn and intersects PQ (produced) at T.
Theorem Used:
In a parallelogram, if a line from a vertex to the midpoint of the opposite side is extended to meet the extended side of the parallelogram, it divides the extended side in the ratio 2:1.
QM parallel to be PS, and QM = QT
So we can say that PQ = QT
Again PQ = SR
Now PT = 2PQ
So PT= 2SR (Opposite sides of parallelogram.
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