- 10 In The Following Diagram It Is Given That Dec Ab Dc Ad Eb And Ad Bc A A Why Isn T Abcd A Parallelogram 1 (143.04 KiB) Viewed 37 times
10. In the following diagram it is given that DEC, AB || DC, AD || EB and AD = BC. A (a) Why isn't ABCD a parallelogram
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10. In the following diagram it is given that DEC, AB || DC, AD || EB and AD = BC. A (a) Why isn't ABCD a parallelogram
10. In the following diagram it is given that DEC, AB || DC, AD || EB and AD = BC. A (a) Why isn't ABCD a parallelogram even though it has a pair of parallel side and a pair of congruent sides? B 3 2 D E с (b) Explain why BE must be congruent to BC. Further explain what type of triangle this makes AEBC and what it tells you about Z1 and 22. (C) Finally, why must 23 = Z1? Further, explain why we now know that 23= 22.