# Math 323S - Classical and Modern Geometry

### Tuesdays and Thursdays, 11:45 - 1, Physics 227

### Professor Hubert Bray, Mathematics Department, Duke University

Office Hours: Mondays, 5:00 p.m. - 7:00 p.m.

(Please email me if you are coming after 5:30 p.m. so that I will know not to leave early.)

## Announcements

Office Hours are on Mondays, 5:00 p.m. - 7:00 p.m. If you are coming
after 5:30 p.m., please let me know so that I know to wait for you and do not
leave early.

Here is a practice exam
for midterm 1, which was used by me in this class in 2008.
The best way to study for the exam is to go over old homework problems,
other book problems in the same sections, and the problems in the above
exam. I also expect you to be able to prove the major
theorems of the course if asked. So know the proofs of:

The Rule of Pythagorus

SSS, SAS, ASA

The Star Trek Lemma

Power of the Point

Medians intersect at a point

Angle Bisectors intersect at a point

Perpendicular Bisectors intersect at a point

Altitudes intersect at a point

Law of Sines

Law of Cosines

The Euler Line

The Nine Point Circle

The Simson Line

Menelaus's Theorem

Ceva's Theorem

Expect 3 of the problems to be proving a selection of the above
theorems, and the other 3 problems or so to be from the homework and
related problems.