### Home > CCG > Chapter 8 > Lesson 8.2.2 > Problem8-87

8-87.

Callie started to prove that given the information in the diagram at right, then $\overline{AB} \cong \overline{CD}$. Copy her flowchart below on your paper and help her by justifying each statement. Homework Help ✎

Given in diagram.

Given in diagram.

If lines are parallel, then alt int angles are $\cong$.

Shared side (or Reflexive Property)

AAS $\cong$

Congruent triangles have congruent parts.