geometry proofs
About this set
Created by:
eef62 on November 16, 2009
Subjects:
Geometry Proofs, geometry theorems, geometry postulates
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21 terms
Terms | Definitions |
|---|---|
 addition property of equality | adding the same thing to both sides |
| subtraction property of equality | subtracting the same thing to both sides |
| multiplication property of equality | multiplying the same thing on both sides |
| division property of equality | dividing the same thing on both sides |
| segment addition postulate | adding 2 segment pieces to equal a whole segment |
| angle addition postulate | adding 2 angles to equal an entire angle |
| definition of midpoint | the point that divides a segment into 2 congruent angles |
| definition of angle bisector | ray that divides an angle into 2 congruent angles |
| vertical angles are congruent | vertical angles are congruent |
| midpoint theorem | if M is the midpoint then the segments are 1/2 the total measure |
| reflexive property | ab=ab (duh property) |
| symmetric property | ab=ba |
| substitution property | substitution |
| transitive property | if a=b and b=c then a=c |
| definition of segment bisector | a line, segment, or ray that intersects a segment at its midpoint |
| definition of right angle | an angle whose measure is 90 |
| definition of perpendicular lines | 2 lines that intersect to form a right angle |
| 2 lines = perpendicular = congruent adjacent angles | the lines are perpendicular... the conclusion is that they form 90 degree angles, or congruent adjacent angles |
| definition of complementary angles | 2 angles whose sum is 90 |
| definition of supplementary angles | 2 angles whose sum is 180 |
| if exterior of 2 adjacent acute angles are perpendicular then the angles are complementary | if exterior of 2 adjacent acute angles are perpendicular then the angles are complementary |
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