Question

In a triangle PQR x and y are the points on PQ and QR respectively.If PQ=QR and QX=QY,show that PX=RY

Answer 1

PQ = QR, QX = RY
PX + QX = PQ
RY + QY = RQ
PX + QX = RY + QY
QX = RY
PX = QY QED