Question

pls help in this question

Answer 1

Given, angle ABC=66° and AB|| CD

Answer:

So angle BCD= 66° (alt opposite angle)

Given, angle BCE =36° so, angle ECD=66-36= 30°

Now, angle ECD+ angle CEF= 150+30=180° ( Proving sum on int adjacent angle in parallelogram=180°)

Thus, CD||EF

since AB||CD so AB||EF