Triangles Course
Build strong foundations in geometry by mastering triangle classification, congruence and similarity proofs, Pythagorean theorem, trigonometric applications, area formulas, and key centres like centroid and circumcentre, preparing you for advanced maths with clear, step-by-step techniques applicable right away.

flexible workload of 4 to 360h
valid certificate in your country
What will I learn?
This course provides a practical guide to understanding triangle types, side-angle relationships, and essential formulas like Pythagorean theorem, trigonometry ratios, and area calculations. Learners will gain skills in proving congruence and similarity, using Laws of Sines and Cosines, and exploring special lines and centres such as the Euler line for effective problem-solving.
Elevify advantages
Develop skills
- Classify triangles by sides and angles using practical examples.
- Solve for sides and angles with Pythagoras, trig ratios, and areas.
- Prove congruence via SSS, SAS, ASA, AAS, RHS and similarity by AA.
- Locate triangle centres including centroid, circumcentre, and Euler line.
- Apply suitable theorems for structured triangle problem solutions.
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
Your classes are perfect. I got the one-year package and finally have the chance to follow several topics I'm interested in without having to switch platforms... I appreciate everything you do, I've already recommended you to others...

Giulio CarloDigital Marketing Student
I like how the lessons are 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
FAQ
Who is Elevify? How does it work?
Do the courses have certificates?
Are the courses free?
What is the course workload?
What are the courses like?
How do the courses work?
What is the duration of the courses?
What is the cost or price of the courses?
What is an EAD or online course and how does it work?
PDF Course