Circle Geometry Course
Master circle geometry with powerful theorems, angle-chasing, and construction techniques. This Circle Geometry Course helps mathematics professionals solve complex problems with confidence in research, teaching, and competition settings.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
The Circle Geometry Course gives you a fast, focused path to mastering circle definitions, chords, arcs, and angle relationships, then builds to tangents, secants, and power of a point. You will practice angle-chasing, construct useful auxiliary lines, apply Ptolemy’s theorem, and use inversion, homothety, and coordinate setups to solve challenging, contest-style problems with confidence and precision.
Elevify advantages
Develop skills
- Master circle theorems: apply power, chords, tangents for fast length results.
- Execute advanced angle-chasing: combine inscribed, tangent, and secant rules.
- Use cyclic quadrilaterals and Ptolemy to crack contest-style geometry problems.
- Apply inversion, homothety, and symmetry to simplify complex circle figures.
- Blend algebra and geometry: set variables, build equations, and solve circle setups.
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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