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geometry t/p
Question | Answer |
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Theorem 3-1 | If two parallel planes are cut by a third plane the lines of intersection are parallel |
postulate 10 | If two parallel lines are cut by a transversal then the corresponding angles are congruent. |
Theorem 3-2 | if two parallel lines are cut by a transversal then alternate interior angles are congruent. |
theorem 3-3 | if two parallel lines are cut by a transversal then the same side interior angles are supplementary. |
THeorem 3-4 | if a transversal is perpendicular to one of two parallel lines then it is perpendicular two the other one also. |
Postulate 10 | if two parallel lines are cut by a transversal then corresponding angles are congruent. |
postulate 11 | if two lines are cut by a transversal and corresponding angles are congruent then the lines are parallel. |
theorem 3-5 | IF two lines are cut by a transversal and alternate interior angles are congruent then the lines are parallel. |
theorem 3-6 | If two lines are cut by a transversal and same side interior angles are supplementary then the lines are parallel. |
Theorem 3-7 | in a plane two lines perpendicular to the same line are parallel. |
Theorem 3-8 | through a point outside a line there is exactly one line parallel to the given line. |
Theorem 3-9 | through a point outside a line there is exactly one line perpendicular to the given line |