Parallel Lines or Not?
Determine if the red lines are parallel!
1. What theorem or reason did you use to show that the lines were parallel?
2. Describe the segments you think are perpendicular to any red line.
Definition of a Segment Bisector
3. What does it mean for a line to be a perpendicular bisector of a segment? Explain.
4. Give one pair of same side interior angles (use their numbers). Describe the relationship between their measures.
Review for #4
Constructing Parallel and Perpendicular Lines
#5 Investigate the tools in the toolbar on top. Can you use a tool to find the slope and y-intercept of a line? If so, try to find the equation for a line that is perpendicular to the purple line.