2.2.2 Geometric Proof

Question 1

theorem

Answer 1

any statement you can prove

Question 2

two-column proof

Answer 2

a type of proof where the statements and corresponding reasons are listed in two columns with the
statements in the left column and the reasons in the right column

Question 3

Linear Pair Theorem

Answer 3

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

Question 4

Congruent Supplements

Answer 4

Theorem If two angles are supplementary to the same angle (or to two congruent angles), then the two angles are congruent.

Question 5

Right Angle Congruence

Answer 5

Theorem All right angles are congruent.

Question 6

Congruent Complements

Answer 6

Theorem If two angles are complementary to the same angle (or to two congruent angles), then the two angles are congruent.

Question 7

Supplementary Angles

Answer 7

two angles who’s measures have a sum of 180 degrees

Question 8

Congruent Angles

Answer 8

angles who’s measures are the same

Question 9

Substitution Property of Equality

Answer 9

if a=b, than b can be substituted for a in any expression

Question 10

linear pair

Answer 10

a pair of adjacent angles whose noncommon sides form a line

Question 11

straight angle

Answer 11

• it is a 180 degree angle

- the sides form a line