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E and F are points on the sides PQ and PR respectively of a `trianglePQR`.For each of the following cases, state whether `EF||QR`:(ii) PE = 4 cm, QE =4.5 cm, PF = 8 cm and RF = 9 cm

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R G PUBLICATION-TRIANGLES-EXERCISE
  1. In fig(i) ,DE||BC.Find EC in (i).

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  2. E and F are points on the sides PQ and PR respectively of a trianglePQ...

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  3. E and F are points on the sides PQ and PR respectively of a trianglePQ...

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  4. E and F are points on the sides PQ and PR respectively of a trianglePQ...

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  5. In Fig. , if LM||CB and LN||CD,prove that (AM)/(AB)=(AN)/(AD)

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  6. In Fig. DE||AC and DF||AE.Prove that (BF)/(FE)=(BE)/(EC)

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  7. In Fig. 6.20, DE||OQ and DF||OR.Show that EF||QR.

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  8. In Fig., A, B and C are points on OP, OQ and OR respectively such that...

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  9. Using Theorem 6.1, prove that a line drawn through the mid-point of on...

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  10. Using Theorem 6.2, prove that the line joining the mid-points of any t...

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  11. ABCD is a trapezium in which AB||DCand its diagonals intersect each ot...

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  12. The diagonals of a quadrilateral ABCD intersect each other at the poin...

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  13. State which pairs of triangles in Fig. are similar. Write the similari...

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  14. State which pairs of triangles in Fig. are similar. Write the similari...

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  15. State which pairs of triangles in Fig.are similar. Write the similarit...

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  16. State which pairs of triangles in Fig.are similar. Write the similarit...

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  17. State which pairs of triangles in Fig.are similar. Write the similarit...

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  18. State which pairs of triangles in are similar. Write the similarity cr...

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  19. In Fig. 6.35, triangleODC~triangleOBA,angleBOC=125^@ and angle CDO=70^...

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  20. Diagonals AC and BD of a trapezium ABCD with AB||DC intérsect each oth...

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