Circle Geometry Course
Dive into circle geometry with this comprehensive course that equips you with essential theorems, angle-chasing strategies, and construction techniques. Ideal for maths enthusiasts, it builds confidence in solving intricate problems for competitions, research, or teaching, using tools like Ptolemy’s theorem, inversion, and algebraic integration.

4 to 360 hours flexible workload
valid certificate in your country
What will I learn?
This course provides a streamlined approach to mastering circle geometry, covering definitions, chords, arcs, angles, tangents, secants, and power of a point. Learners will hone skills in angle-chasing, auxiliary line construction, Ptolemy’s theorem, inversion, homothety, and coordinate methods to tackle advanced contest problems effectively.
Elevify advantages
Develop skills
- Master core circle theorems including power of a point, chords, and tangents for quick calculations.
- Perform sophisticated angle-chasing using inscribed, tangent, and secant angle rules.
- Leverage cyclic quadrilaterals and Ptolemy’s theorem to solve competition-level geometry challenges.
- Employ inversion, homothety, and symmetry to tackle intricate circle configurations.
- Integrate algebra with geometry by assigning variables, forming equations, and resolving circle problems.
Suggested summary
Before starting, you can change the chapters and the workload. Choose which chapter to start with. Add or remove chapters. Increase or decrease the course workload.What our students say
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