Question

plz Solve this ..................​

Answer 1

Given: ABCD is a quadrilateral in which AB || DC and AD || BC.

Since DC || AB,

∴ ∠CDA + ∠DAB = 180° ......(1) (Interior angle on the same side of the transversal AD)

Also, AD || BC,

∴ ∠DAB + ∠ABC = 180° ......(2)

Equating equation (1) and (2),

∠CDA + ∠DAB = ∠DAB + ∠ABC

⇒ ∠CDA = ∠ABC

Answer 2

Answer:

✴REFER TO ATTACHMENT ✴