# 5 geometry questions

*label*Geology

*timer*Asked: Dec 2nd, 2017

**Question description**

As usual, my students have found an error in my exam. The final is *not* like the second exam; you do not need to decide whether the statements are true or false. They are all true; I am asking for proofs. and upgraded the exam as it now.

Proofs must be formal, with the word “Theorem,” a statement of the theorem you are proving, the word “Proof,” a complete proof with statements and reasons, and an end-ofproof marker. In proofs you may refer to theorems in the text, as well as postulates and definitions. Make sure to include the number of the theorem, postulate, or definition to which you are referring