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In ΔABC and ΔDEF, 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. 8.22). Show that (vi) ΔABC ≅ ΔDEF. Q.11 (6)

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How i find the best tricky way for solving the question of class 9th of Quadrilaterals chapter of class 9th give me the best and easy method for this question no.11  of exercise 8.1  In ΔABC and ΔDEF, 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. 8.22). Show that (vi) ΔABC ≅ ΔDEF.

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  1. (vi) In ΔABC and ΔDEF,

    AB = DE (Given)

    BC = EF (Given)

    AC = DF (Opposite sides of a parallelogram)

    , ΔABC ≅ ΔDEF [SSS congruency]

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