Question

Which statement is sufficient to prove that quadrilateral ABCD is a parallelogram?

A) m∠A ≅ m∠C, m∠B ≅ m∠D

B) AB ≅ CD

C) AC ≅ BD

D) BC // AD

Answer 1

A) m∠A ≅ m∠C, m∠B ≅ m∠D

Explanation:

If both pairs of opposite angles are congruent, then the figure is a parallelogram.