1) Name angle pairs by location. Know that angle pairs that do not share a transversal do not have a name.
2) Know when angle pairs are congruent or supplementary (if the transversal crosses parallel lines).
3) Know that when the transversal does not cross parallel lines, the angle pairs are not congruent. But if I can explain another reason why they are congruent, then I can show that lines crossed are parallel.
There is a quiz the next time we meet. It is 24 points.
Study Geometric Truth - Conjectures 1,2,3,3b, and 4 and definitions of angle pairs by good sketches.
Study HW #8 and HW #9. Do worksheet hand-out (HW #10).
Are these lines parallel? Explain why by identifying angle pairs that are congruent that would cause the lines to be parallel.
Identify angle pairs in sketches with no parallel lines.
What angles have to be congruent for these lines to be parallel?
One algebra problem like HW #9. Explain why you can set equal or add to 180.
Missing angles in a sketch.
Today we did three different activities attached below that could be helpful.
In addition to the worksheet handout, HW #10 is also: p 89-90: 1-7, 9-11, 13-15, 27,28,30,39-40.
Geometric Truth should be caught up through C-4, including definitions of perimeter and transversal.