# Department of Mathematics

### Meet the Platonic Solids: Octahedron

The Platonic solids have been known since antiquity, and they play a prominent role in Plato's description of the physical world. The planar faces of each solid are identical polygons. Only equilateral triangles, squares and regular pentagons appear.

Although the platonic solids seem to be purely geometric objects, they embody a number of deep algebraic features. Their symmetries, for example, relate to the solution of polynomial equations of low degree.

If you would like to learn more about Platonic solids, you can start here.

# Resources

- Advising
- Artino Computer Laboratory
- CAISS
- Careers in Mathematics
- Online resources
- Putnam Competition at CCNY
- New York Group Theory Cooperative
- Scholarships and Awards
- Math Department Tutoring: Tutoring run by the Math Department for Maths 19000, 19500, and 20100.
- Math/Physics Tutoring Center
- Video Lessons for Math 201, 202, and 203