Chapter 2

Question 1

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

Answer 1

Theorem

Question 2

Postulate

Answer 2

A statement that is accepted without proof

Question 3

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

Answer 3

Proof

Question 4

Reflexive Property of Congruence

Answer 4

_____ _____

AB congruent to AB

Question 5

Symmetric Property of Congruence

Answer 5

if AB=CD, then CD=AB

Question 6

Transitive Property of Congruence

Answer 6

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

Question 7

Angle Addition Postulate

Answer 7

D is on the interior of

Question 8

Supplement Theorem

Answer 8

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

Question 9

Complement Theorem

Answer 9

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

Question 10

Congruent Supplements Theorem

Answer 10

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

Question 11

Congruent Complements Theorem

Answer 11

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

Question 12

Vertical Angles Theorem

Answer 12

If 2 angles are vertical angles, they are congruent

Question 13

Midpoint Theorem

Answer 13

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