Unit 3 Parallel & Perpendicular Lines

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14 Terms

1
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Parallel Lines

two coplanar lines that do not intersect

<p>two coplanar lines that do not intersect</p>
2
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parallel planes (definition)

planes that do not intersect

<p>planes that do not intersect</p>
3
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Skew Lines

non-coplanar lines that do not intersect

<p>non-coplanar lines that do not intersect</p>
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Transversal

a line that intersects two or more lines

<p>a line that intersects two or more lines</p>
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Corresponding Angles

angles on the same side of the transversal and in the same position

<p>angles on the same side of the transversal and in the same position</p>
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Alternate Interior Angles

interior angles, non-adjacent, and on opposite sides of the transversal

<p>interior angles, non-adjacent, and on opposite sides of the transversal</p>
7
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Alternate Exterior Angles

exterior angles, non-adjacent, and on opposite sides of the transversal

<p>exterior angles, non-adjacent, and on opposite sides of the transversal</p>
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Consecutive Interior Angles

interior angles that are on the same side of the transversal

<p>interior angles that are on the same side of the transversal</p>
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Consecutive Exterior Angles

Exterior angles that are on the same side of the transversal

<p>Exterior angles that are on the same side of the transversal</p>
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Corresponding Angles Converse

If two lines are cut by a transversal so the corresponding angles are congruent, then the lines are parallel.

<p>If two lines are cut by a transversal so the corresponding angles are congruent, then the lines are parallel.</p>
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Alternate Interior Angles Converse

If two lines are cut by a transversal so the alternate interior angles are congruent, then the lines are parallel.

<p>If two lines are cut by a transversal so the alternate interior angles are congruent, then the lines are parallel.</p>
12
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Alternate Exterior Angles Converse

If two lines are cut by a transversal so the alternate exterior angles are congruent, then the lines are parallel.

<p>If two lines are cut by a transversal so the alternate exterior angles are congruent, then the lines are parallel.</p>
13
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Consecutive Interior Angles Converse

If two lines are cut by a transversal so the consecutive interior angles are supplementary, then the lines are parallel.

<p>If two lines are cut by a transversal so the consecutive interior angles are supplementary, then the lines are parallel.</p>
14
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Consecutive Exterior Angles Converse

If a transversal crosses two or more lines such that consecutive exterior angles are supplementary, then the lines crossed by the transversal are parallel.

<p>If a transversal crosses two or more lines such that consecutive exterior angles are supplementary, then the lines crossed by the transversal are parallel.</p>