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.
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.
#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.