| AB |
Midpoint| The allude that divides a segment right into two congruent segments. |
| Acute angle | An angle that measures greater than 0 yet less than 90 degrees. |
| Vertical angles | Two angle whose sides kind two bag of the contrary rays. |
| Supplementary angles | Two angles whose sum is 180 degrees. |
| Linear pair postulate | If two angles kind a linear pair, then they room supplementary and their amount is 180 degrees. |
| Perpendicular lines | Two currently that crossing to form a appropriate angle. |
| Segment bisector | Segment, ray, line, or plane that intersects a segment at its midpoint. |
| Congruent angles | Two angles that have the exact same measure. |
| Complementary angles | Two angles whose amount is 90 degrees. |
| Adjacent angles | Two angles that re-superstructure a vertex and also common side yet have no inner points in common. |
| Linear pair | Two adjacent angles whose noncommon sides room opposite rays. |
| Obtuse angle | An angle the measures an ext than 90 degrees and also less 보다 180. |
| Right angle | An gngle that measures 90 degrees. |
| Angle bisector | A beam that divides one angle right into two congruent angles. |
| Theorem | A statement that need to be confirmed to it is in true. |
| Postulate | A statement the is accepted as true without proof. |
| Collinear | Points, present or segments that room on the very same line. |
| Coplanar | Points, lines , or planes in the very same plane |
| Converse | q implies p |
| Inverse | Not p implies not q |
| Contrapositive | Not q suggests not p |
| Congruent Complements Theroem | If two angles space complementary come the exact same angle, climate they are congruent. |
| Congruent additional Theorem | If 2 angles room supplementary come the same angle, then they space congruent.
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| Vertical angles Theroem | If two angles space vertical angles, climate they are congruent. |
