**2.6: Geometric Proof**

**Definitions:**

**T**

**heorem**- any statement that you can prove

**Two Column Proof -**a proof where you list the steps of the proof in the left column and the matching reason for each step in the right column

**Theorems:**

Linear Pair Theorem- If two angles form a linear pair, then they are supplementary

Linear Pair Theorem

**Congruent Supplements Theorem**- If two angles are supplementary to the same angle, then the two angles are congruent

**Right Angle Congruence Theorem**- all right angles are congruent

**Congruent Complements Theorem**- if two angles are complementary to the same angle, then the two angles are congruent

**Examples:**