CC G-CO 9

Prove theorems about lines and angles. Theorems include: vertical angles are congruent; when a transversal crosses parallel lines, alternate interior angles are congruent and corresponding angles are congruent; points on a perpendicular bisector of a line segment are exactly those equidistant from the segmentâ€™s endpoints.

Category: Geometry

Domain: G-CO Congruence

Cluster: Prove geometric theorems.

All Standards Common Core Standards 8-12