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## Lesson 3-1

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**Lesson 3-1**Parallel Lines and Transversals**Ohio Content Standards:**Formally define geometric figures.**Ohio Content Standards:**Recognize and apply angle relationships in situations involving intersecting lines, perpendicular lines and parallel lines.**Ohio Content Standards:**Recognize the angles formed and the relationship between the angles when two lines intersect and when parallel lines are cut by a transversal.**Skew Lines**Lines that do not intersect and are not coplanar.**G**F B A Name all planes that are parallel to plane AEF. H E C D**G**F B A Name all segments that intersect AF. H E C D**G**F B A Name all segments that are parallel to DC. H E C D**G**F B A Name all segments that are skew to AD. H E C D**Transversal**A line that intersects two or more lines in a plane at different points.**Identify the sets of lines to which each given line is a**transversal. u v w x z y**Identify the sets of lines to which each given line is a**transversal. line v u v w x z y**Identify the sets of lines to which each given line is a**transversal. line y u v w x z y**Identify the sets of lines to which each given line is a**transversal. line u u v w x z y**Identify the sets of lines to which each given line is a**transversal. line w u v w x z y**p**1 2 4 3 q exterior angles 5 6 r 8 7**p**1 2 4 3 q exterior angles 5 6 r 8 7**p**1 2 4 3 q interior angles 5 6 r 8 7**p**1 2 4 3 q interior angles 5 6 r 8 7**p**1 2 4 3 q consecutive interior angles 5 6 r 8 7**p**1 2 4 3 q consecutive interior angles 5 6 r 8 7**p**1 2 4 3 q alternate exterior angles 5 6 r 8 7**p**1 2 4 3 q alternate exterior angles 5 6 r 8 7**p**1 2 4 3 q alternate interior angles 5 6 r 8 7**p**1 2 4 3 q alternate interior angles 5 6 r 8 7**p**1 2 4 3 q corresponding angles 5 6 r 8 7**p**1 2 4 3 q corresponding angles 5 6 r 8 7**Identify each pair of angles as alternate, interior,**alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.**1**2 4 3 5 6 8 7 9 10 11 12 Identify each pair of angles as alternate, interior, alternate interior, alternate exterior, corresponding, or consecutive interior angles.