This is a first year, high-school level course on Geometry (which is based on Euclid's elements). It revisits many of the basic geometrical concepts studied in earlier courses, but addresses them with more mathematical rigor. There is strong focus on proving theorems and results from basic postulates.


  1. Points, lines, and planes Points, lines, and planes
  2. Angles and intersecting lines Angles and intersecting lines
  3. Congruent triangles Congruent triangles
  4. Perimeter, area and volume Perimeter, area and volume
  5. Similarity Similarity
  6. Right triangles Right triangles
  7. Special properties and parts of triangles Special properties and parts of triangles
  8. Quadrilaterals Quadrilaterals
  9. Circles Circles
  10. Logical reasoning Logical reasoning
  11. Transformations Transformations
  12. Worked Examples Worked Examples