# Mathematics in Ancient Mesopotamia

### Primary Sources

Note that you can drag and rotate the tablets above.

# Hellenic Mathematics

### Euclid Elements: Links to use in class

1. Bisection of an angle
2. Construction an equilateral triangle in Geogebra.
3. One Step in the Proof of Pythagoras' Theorem
4. Another step of Euclid's proof of the Pythagorean Theorem
5. Two apps( here and here) illustrating Euclid's proof of Pythagoras' Theorem
6. Some of the many, many proofs of the Pythagorean theorem
7. Youtube clip of the movie "Lincoln" (discussion of Euclid's Elements)
8. Of Euclid and equality by Noam D. Elkies
9. Morley Trisector theorem (1899!)
10. Morley Trisector theorem once more (1899!)

1. Here you'll find a great discussion about the "proof" that all triangles are isosceles. Here you'll find a great video about it.

### Archimedes, Apollonius, Erathostenes: Links to use in class

1. Clip from the movie Agora
2. Apollonius of Perga (~200BCE) Conic sections
3. Parabola focus and directrix
4. The parabola as a mirror
5. Conic Sections - Apollonius
6. Archimedes and the volume of the sphere I.
7. Archimedes and the volume of the sphere II.
8. Eratosthenes and the circumference of the earth