Reading: Reread part of Chapter 7 before Section 7.1 and Section 7.7, and read Sections 7.8 and 4.1-4.
Section 7.9: 32 [Hint: A clue to this problem is to recall that each isometry either preserves or reverses orientation. This is material of Chapter 7 before Section 7.1. This should reduce the possibility for the composition in the problem to only two isometries from the list.], 33 [We have almost done that one in class.], 43 [Warning: a symmetry of the segment is not determined uniquely by where it takes the endpoints of the segment.]
Section 4.10: 1, 28 [Do this just for one pair of the segments emanating from distinct vertices.]