DE, ABDE, BCEF11. In Δ ABC and Δ DEF, ABand BC I EF. Vertices A, B and C are joined tovertices D, E and F respectively (see Fig. 8.22)Show thatquadrilateral ABED is a parallelogram) quadrilateral BEFC is a parallelogram(iii) ADI CF and AD-CF(iv) quadrilateral ACFD is a parallelogram(v) AC-DF(vi) Δ ABC0E.Fig. 8.22Δ DEF

DE, ABDE, BCEF11. In Δ ABC and Δ DEF, ABand BC I EF. Vertices A, B a

1.	DE, ABDE, BCEF11. In Δ ABC and Δ DEF, ABand BC I EF. Vertices A, B and C are joined tovertices D, E and F respectively (see Fig. 8.22)Show thatquadrilateral ABED is a parallelogram) quadrilateral BEFC is a parallelogram(iii) ADI CF and AD-CF(iv) quadrilateral ACFD is a parallelogram(v) AC-DF(vi) Δ ABC0E.Fig. 8.22Δ DEF
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