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Contents Lesson 3-1Parallel Lines and Transversals Lesson 3-2Angles and Parallel Lines Lesson 3-3Slopes of Lines Lesson 3-4Equations of Lines Lesson 3-5Proving Lines Parallel Lesson 3-6Perpendiculars and Distance

Lesson 1 Contents Example 1Identify Relationships OBJECTIVE: To identify the relationship between two lines or two planes (2.9.3E) (M8.C.1)

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

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

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

Example 1-1d Name all segments that are skew to Answer: Skew lines are lines that do not intersect and are not coplanar.

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

GUIDED PRACTICE 1.Name all planes that intersect plane ADE. 2.Name all segments that are parallel to Segment CD 3. Name all segments that intersect segment BC ADC, FAB, DEH, and FEH Segments EH, FG, and AB Segments DC, AB, GB, HC, EC

End of Lesson 1

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