parallelogram properties proof
Check the final answer first, then review the worked steps.
Problem
parallelogram properties proof
Step-by-step solution
To prove opposite angles of a parallelogram are congruent, one typically draws a diagonal to form two triangles and uses the fact that opposite sides are parallel to show alternate interior angles are congruent, or uses the property that opposite sides are congruent to prove triangle congruence (SSS).
Answer
D