| A | B |
|---|
| midpoint | the point of the segment that divides the segments into two congruent parts |
| bisector | a line that divides something into two equal parts |
| linear pair | a pair of adjacent angles that adds up to 180 degrees |
| perpendicular pair | two lines that intersect each other at a 90 degree angle forming a right angle |
| complementary angles | two angles that add up to 90 degrees |
| supplementary angles | two angles that add up to 180 degrees |
| conguent | having the same size or shape |
| segment addition postulate | two segments that add up to equal the whole segment |
| angle addition postulate | two angles that add up together to equal one big angle |
| substitution property | if a = b then you can replace a with b anywhere |
| reflexive property | a = a or everything is equal to itself |
| symmetric property | if a = b then b = a |
| transitive property | if a = b and b = c then a = c |
| Addition/Subtraction/Multiplication/Division Property of Equality | add/subtract/multiply or divide on both sides of the equation |
