Two sides AB and BC and median AM of one triangle ABC are respectively equal to sides PQ and QR and median PN of triangle PQR.Show that AC = PR
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Data : Two sides AB and BC and median AM of one triangle ABC are respectively equal to sides PQ and QR and median PN of ΔPQR.
To Prove:
(i) ΔABM≅ΔPQN
(ii) ΔABC≅ΔPQR.
Proof: (i) In ΔABC,
AM is the median drawn to BC.
∴ BM=21BC
Similarly, in ΔPQR,
QN=21QR
But, BC=QR
21BC=21QR
∴ BM=QN
In ΔABM and ΔPQN,
AB=PQ (data)
BM=QN (data)
AM=PN (proved)
∴ ΔABM≅ΔPQN (SSS postulate)
(ii) In ΔABC and ΔPQR,
AB=PQ (data)
∠ABC=∠PQR (proved)
BC=QR (data)
ΔABC≅ΔPQR (SSS postulate)
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