Right Angle Theorem

All right angles are congruent

Perpendicular line definition

Two lines that form a right angle

Reflexive theorem

Everything is congruent to itself

Transitive Theorem

If two objects are congruent to the same object then they are congruent to each other.

a=b, b=c --> a=c

a=b, b=c --> a=c

Linear Angle Theorem

Linear angles are supplementary

Vertical Angles Theorem

Vertical Angles are congruent

Congruent supplements theorem

Supplements of congruent angles are congruent.

Congruent complements theorem

Complements of congruent angles are congruent.