Question

14. In the given figure, is AB || EF ?
A4
B
50°
F
2160°
309
20°
D​

Answer 1

Answer:

Yes the lines are parallel...

Step-by-step explanation:

<B = <BCD

Therefore, AB || CD by alternate angle test.

Now,

<ECD + <CEF = 180            ........ ( 20 + 160 = 180)

If the angles on the same side of transversal are supplementary then the lines are parallel.

Therefore, EF || CD.

AB || CD

EF || CD

hence, AB || EF

Hope this helps...... : )

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