Term
Corresponding Angles Postulate |
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Definition
If two parallel lines are cut by a transversal, then the pairs of corresponding angles are congruent. |
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Term
Alternate Interior Angles Theorem |
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Definition
If two parallel lines are cut by a transversal, then the pairs of alternate interior angles are congruent. |
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Alternate Exterior Angles Theorem |
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Definition
If two parallel lines are cut by a transversal, then the pairs of alternate exterior angles are congruent. |
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Perpendicular Transversal Theorem |
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Definition
If a transversal is perpendicular to one of two parallel lines, then it is perpendicular to the other. |
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Term
Corresponding Angles Converse |
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Definition
If two lines are cut by a transversal so that the corresponding angles are congruent, then the lines are parallel. |
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Term
Alternate Interior Angles Converse |
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Definition
If two lines are cut by a transversal so that the alternate interior angels are congruent, then the lines are parallel. |
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Term
Alternate Exterior Angles Converse |
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Definition
If two lines are cut by a transversal so that alternate exterior angels are congruent, then the lines are parallel. |
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Term
Consecutive Interior Angles Converse |
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Definition
If two lines are cut by a transversal so that consecutive interior angles are supplementary, then the lines are parallel. |
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Term
Consecutive Interior Angles Theorem |
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Definition
If two parallel lines are cut by a transversal, then the pairs of consecutive interior angles are supplementary. |
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Term
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Definition
2 lines that are coplanar and do not intersect. |
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Term
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Definition
a line that intersects two or more coplanar lines at different points. |
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Definition
lines that do not intersect and are not coplanar |
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Term
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Definition
If there is a line, an a point not on the line, then there is one line through the point parallel to the given line. |
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Term
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Definition
If there is a line, and a point not on the line, then there is one line through the point perpendicular to the given line. |
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