Question

Pls tell the answer with steps

(No irrelevant answers pls)

Answer 1

Answer:

Angle a =40°

Angle b=140°

Step-by-step explanation:

As AB || CD (given)

angle ABC = angle BCD (alternate interior angles)

So, angle BCD =a= 40°

Now,

BC || ED (given) & CD is transversal,

Angle BCD + angle CDE = 180° (angle on a straight line)

40° + angle CDE =180°

Angle CDE = 140°

Angle CDE = angle DEF (alternate interior angles)

Angle DEF = b = 140°

Hope this helped you..

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