If in two triangle ABC and PQR , AB/QR= BC/PR= CA / PQ .

1.	If in two triangle ABC and PQR , AB/QR= BC/PR= CA / PQ .
Answer» Given, in two Δ ABC and Δ PQR, AB/QR = BC/PR = CA/PQwhich shows that sides of one triangle are proportional to the side of the other triangle, then their corresponding angles are also equal, so by SSS similarity, triangles are similar.i.e., Δ CAB ∼ Δ PQR

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