Flashcards in Chapter 2 Deck (13):

1

## A mathematical statement that can be proven. Can be used to justify statements in proofs

### Theorem

2

## Postulate

### A statement that is accepted without proof

3

## A logical argument in which each statement you make is supported byy a statement that is accepted as true

### Proof

4

## Reflexive Property of Congruence

###
_____ _____

AB congruent to AB

5

## Symmetric Property of Congruence

### if AB=CD, then CD=AB

6

## Transitive Property of Congruence

### If AB=CD and CD=EF, then AB=CF

7

## Angle Addition Postulate

### D is on the interior of

8

## Supplement Theorem

### If two angles form a linear pair, then they are supplementary

9

## Complement Theorem

### If the noncommon side of two adjacent angles form a right angles, the two angles are complementary

10

## Congruent Supplements Theorem

### Angles Supplementary to the same angle or two congruent angles are congruent

11

## Congruent Complements Theorem

### Angles complementary to the same angles or two congruent angles are congruent

12

## Vertical Angles Theorem

### If 2 angles are vertical angles, they are congruent

13