Circle Geometry Course
Gain expertise in circle geometry through key theorems, smart angle-chasing, and clever constructions. This course equips maths experts to handle tough circle problems with assurance in research, teaching, and competitions, building strong problem-solving abilities for real-world applications.

from 4 to 360h flexible workload
valid certificate in your country
What will I learn?
This course provides a quick and targeted way to master circle basics like definitions, chords, arcs, and angles, advancing to tangents, secants, and power of a point. Learners will hone skills in angle-chasing, drawing helpful lines, using Ptolemy’s theorem, and applying inversion, homothety, plus coordinates to tackle tough contest problems confidently.
Elevify advantages
Develop skills
- Master circle theorems to quickly find lengths using power, chords, and tangents.
- Perform advanced angle-chasing by mixing inscribed, tangent, and secant techniques.
- Leverage cyclic quadrilaterals and Ptolemy’s theorem for contest-level geometry challenges.
- Employ inversion, homothety, and symmetry to tackle intricate circle diagrams.
- Integrate algebra with geometry by assigning variables, forming equations, and resolving circle problems.
Suggested summary
Before starting, you can change the chapters and 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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