Geometry 2.4 - 2.6
|addition property||If a=b, then a+c = b+c|
|subtraction property||If a=b, then a-c = b-c|
|multiplication property||If a=b, then ac = bc|
|division property||If a=b, and c is not 0, a/c = b/c|
|reflexive property||a = a|
|symmetric property||If a = b, then b = a|
|transitive property||If a = b and b = c, then a = c|
|substitution property||If a = b, then a can be substituted for b in any expression|
|theorem||A true statement that follows as a result of other true statements|
|right angle congruence theorm|| |
All right angles are congruent.
|congruent supplements theorem|| |
If two angles are supplementary to the same or congruent angles, then they are congruent.
|congruent complements theorem|| |
If two angles are complementary to the same or congruent angles, then the two angles are congruent.
|linear pair postulate|| |
If two angles form a linear pair, then they are supplementary.
|vertical angles theorem|| |
Vertical angles are congruent.