I. The first and last pages of the Discovery Geometry (2003) Chapter Review of the "Reasoning in Geometry" chapter , pp. 138 and 140 [click to enlarge]:
II. The Weeks & Adkins A Course in Geometry (1961) Chapter Review of the "Proof" chapter, p. 55 [click to enlarge]:
III. Extra Credit
If you had to ditch a geometry course in order to make room for an entrepreneurship course, would you be more likely to ditch the Weeks & Atkins course, or the Discovering Geometry course?