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math87-102
| Question | Answer |
|---|---|
| complementary angles | two angles whose measure total 90 degrees |
| supplementary angles | two angles whose measure total 180 degrees |
| linear pair | the two angles formed by 3 collinear points and a 4th noncollinear points connected to the middle collinear point |
| linear-pair postulate | the angles in a linear pair are supplementary |
| supplements of congruent angles are congruent | supplements of the same angle are congruent |
| complements of congruent angles are congruent | complements of the same angle are congruent |
| all right angles are congruent | |
| vertical angles | two angles whose side form two pairs of opposite rays |
| angle bisector | a ray that is in the interior of an angle and that divides that angles into two congruent angles |
| vertical angles are congruent | |
| two perpendicular lines from four right angles | |
| transversal | a line that intersects two coplaner lines at two different pairs |
| if parallel lines are cut by a transversal then the alternate interior angles are congruent | |
| if parallel lines are cut by a transversal then the | A. corrosponding angles are congruent B. alternate interior angles are congruent C. same-side interior angles are supplementary |
| if two lines are cut by transversal so that a pair of alternate interior angles are congruent then the lines are parallel | |
| if two lines are cut by a transversal so that a pair of | A. corrosponding angles are congruent B. alternate exterior angles are congruent C. same-side interior angles are supplementary then the lines are parallel |
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