Question

If BC = 15, BE = 6, DC = 12, and AD = 8, then segment DE is parallel to segment AB.

Answer 1

Solution: if BC = 15 - 6 = 9

Use the converse of triangle proportionality theorem

AD/DC = 8/12 = 2/3
BE/EC = 6/9 = 2/3

Answer: yes, AD/DC =BE/EC = 2/3, so DB||AB

Answer 2

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