Create New Account Courses Polypad Activities Lesson PlansDark Mode

Change Language

Sign in to Mathigon

Google Microsoft

or

Email or UsernamePassword

New Account Reset Password

Triangles and Trigonometry

Properties of Triangles

Midsegments and Similarity

Triangle Congruence

Pythagoras’ Theorem

Isosceles and Equilateral Triangles

Sine and Cosine Rules

Share

Reset Progress

This will delete your progress and chat data for all chapters in this course, and cannot be undone!

Glossary

Select one of the keywords on the left…

Triangles and TrigonometryIsosceles and Equilateral Triangles

Reading time: ~5 min

Under Construction

Sorry, we are still working on this section.
Please check back soon!

To reveal more content, you have to complete all the activities and exercises above.
Are you stuck? Skip to the next step or reveal all steps

Archie

Popular Courses

Intermediate – Circles and Pi

Spheres, Cones and Cylinders

Intermediate – Sequences and Patterns

Fibonacci Numbers

Intermediate – Graphs and Networks

The Bridges of Königsberg

Advanced – Fractals

The Mandelbrot Set