Question

pls answer this question ​

Answer 1

Step-by-step explanation:

AB ll DC and AC as transversal,

angle ABC = angle DCE (Corresponding angles)

angle DCE = 80°

angle BAC = angle ACD (Alternate interior angles)

angle BAC = 40°

angle A = 40° (1)

120° = angle DCE + angle CDE (Exterior angle of a triangle is equal to sum of its opposite interior angles)

120° = 80° + angle CDE

angle CDE = 40°

angle D = 40° (2)

From (1) and (2),

angle A = angle D

Hence proved

Answer 2

Step-by-step explanation:

Plz refer to the attachment......

Hope it helps u.......