Plane Geometry Course
Master triangle and circle geometry with rigorous constructions, key theorems, and precise calculations. This Plane Geometry Course sharpens proof skills and problem-solving for advanced mathematics, contests, and professional applications.

4 to 360 hours of flexible workload
valid certificate in your country
What Will I Learn?
The Plane Geometry Course delivers a focused, practical path to mastering core results on triangles and circles. Explore precise definitions, congruence and similarity, triangle inequalities, and multiple area formulas. Practice ruler-and-compass constructions, chord–radius relationships, and Thales’ theorem, while strengthening algebraic techniques essential for clear, accurate geometric reasoning and reliable problem solving.
Elevify Differentials
Develop Skills
- Triangle construction mastery: build and justify figures with ruler and compass.
- Circle and chord problem solving: apply inscribed angles and distance formulas.
- Triangle classification expertise: use inequalities, Pythagoras, and cosine law.
- Precision area computation: apply Heron’s formula and alternative area methods.
- Geometry proof techniques: leverage medians, bisectors, and Thales’ theorem.
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
Your classes are perfect. I purchased the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... thank you for everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons get straight to the point and how I can switch chapters and skip content I don't need.

Mariana FerresPhotography Student
I like the content and the way the videos are presented and transcribed, which speeds up the process!

Luciana AlvarengaNail Design Student
The platform is fast and easy to use. The variety of content and the supplementary videos really help with learning.

Giulio CarloPrompt Engineering Student
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