In Fig, 6.21 , A, B and C are points on OP, OQ and OR respectively such that AB||PQ and AC||PR. Show that BC||QR.

In fig., A, B and C are points on OP, OQ and OR respectively such that AB || PQ and AC || PR. Show that BC || QR. .

In the given figure, AB || PQ and AC || PR. Prove that BC || QR. .

In Fig. 6.20. DE||OQ anti DF||OR. Show that EF||QR.

In Delta ABC and Delta DEF , AB = DE, AB|| DE , BC = EF and BC|| EF . Vertices A, B and C are joined to vertices D, E and F respectively (See fig.) Show that AD ||CF and AD=CF.

In Delta ABC and Delta DEF , AB = DE, AB|| DE , BC = EF and BC|| EF . Vertices A, B and C are joined to vertices D, E and F respectively (See fig.) Show that AD ||CF and AD=CF.

In Delta ABC and Delta DEF , AB = DE, AB|| DE , BC = EF and BC|| EF . Vertices A, B and C are joined to vertices D, E and F respectively (See fig.) Show that AC=DF.

In Delta ABC and Delta DEF , AB = DE, AB|| DE , BC = EF and BC|| EF . Vertices A, B and C are joined to vertices D, E and F respectively (See fig.) Show that AC=DF.

In Fig. , sides AB and AC of DeltaABC are extended to points P and Q respectively. Also anglePBC AB .

In Fig. , sides AB and AC of DeltaABC are extended to points P and Q respectively. Also anglePBC AB .

Points P, Q and R lie on sides BC, CA and AB respectively of triangle ABC such that PQ || AB and QR || BC, prove that RP II CA.