Special+Lines

1. Definitions: __Parallel Lines:__ Lines that never intersect.

__Intersecting Lines:__ Lines that connect to each other.

__Perpendicular:__ Two lines that intersect to form right angles.

2.PICTURE:

3. SENTENCES: Train tracks are examples of parallel lines.

Our driveway connects with the main highway making them intersecting lines.

The crosshairs in a rifle scope are perpendicular to one another.

4. PROBLEM: Which is an example of parallel lines? __handrails__ or baseball bat

What angle is create from perpendicular lines? 30°, 60°, __90__°

When lines intersect do they a. touch b. cross __c. both__ ?