Strengthen your foundations in geometry with angles, triangles, and polygons.

28 Lessons

In this course, you'll solve delightful geometry puzzles and build a solid foundation of skills for problem-solving with angles, triangles, and polygons. You'll also improve your visual intuition and learn how to come up with clever, creative solutions to tough challenges.

This course is the perfect place to start (or continue) your exploration of geometry if you know how to measure angles and calculate the areas of rectangles, circles, and triangles; and want to learn the next level of geometric problem-solving techniques.

- Angle Axioms
- Angle Hunting Shortcuts
- Composite Area
- Complementary Areas
- Curry's Paradox
- Invariant Areas
- Polygon Angles
- Regular Polygons
- Stellations
- The Triangle Inequality
- Triangle Congruence
- Triangle Similarity