Question

Which of the following statements must be true about parallelogram ABCD?

A)

AD≅ BC

B)

∠A ≅ ∠D

C)

∠A + ∠C = 180°

D)

AD || BA

Answer 1

Answer:

A

Step-by-step explanation:

A is correct because it is one of the properties of a parallelogram.

B is incorrect, angles opposite to each other are congruent.

C is incorrect because it isn't a property of a parallelogram.

A + D = 180 = B + C = 180

D is incorrect because AD and BA meet at point A, so they are definitely not parallel.