Chapter 2 Flashcards Preview

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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

Midpoint Theorem

If Y is the midpoint of XZ, then XY=YZ