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Lesson 3-1 Pair of Lines and Angles Contents

Example 1 Identify Relationships Example 2 Identify Transversals Example 3 Identify Angle Relationships Lesson 1 Contents

Name all planes that are parallel to plane AEF. Answer: plane BHG Example 1-1a

Name all segments that intersect Answer: Example 1-1b

Name all segments that are parallel to Answer: Example 1-1c

Name all segments that are skew to Answer: Example 1-1d

Use the figure to name each of the following. a. Name all planes that are parallel to plane RST. b. c. d. Answer: plane XYZ Answer: Answer: Answer: Example 1-1e

BUS STATION Some of a bus station’s driveways are shown BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line v is a transversal. Answer: If the lines are extended, line v intersects lines u, w, x, and z. Example 1-2a

BUS STATION Some of a bus station’s driveways are shown BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line y is a transversal. Answer: lines u, w, x, z Example 1-2b

BUS STATION Some of a bus station’s driveways are shown BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line u is a transversal. Answer: lines v, x, y, z Example 1-2c

BUS STATION Some of a bus station’s driveways are shown BUS STATION Some of a bus station’s driveways are shown. Identify the sets of lines to which line w is a transversal. Answer: lines v, x, y, z Example 1-2d

HIKING A group of nature trails is shown HIKING A group of nature trails is shown. Identify the sets of lines to which each given line is a transversal. a. line a b. line b c. line c d. line d Answer: lines c, d, e, f Answer: lines c, d, e, f Answer: lines a, b, d, e, f Answer: lines a, b, c, e, f Example 1-2e

Answer: corresponding Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: corresponding Example 1-3a

Answer: alternate exterior Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: alternate exterior Example 1-3b

Answer: corresponding Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: corresponding Example 1-3c

Answer: alternate exterior Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: alternate exterior Example 1-3d

Answer: alternate interior Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: alternate interior Example 1-3e

Answer: consecutive interior Identify as alternate interior, alternate exterior, corresponding, or consecutive interior angles. Answer: consecutive interior Example 1-3f

Answer: consecutive interior Identify each pair of angles as alternate interior, alternate exterior, corresponding, or consecutive interior angles. a. b. c. Answer: consecutive interior Answer: corresponding Answer: alternate exterior Example 1-3g

Answer: alternate interior Identify each pair of angles as alternate interior, alternate exterior, corresponding, or consecutive interior angles. d. e. f. Answer: alternate interior Answer: corresponding Answer: alternate exterior Example 1-3g

End of Lesson 1