This concept teaches students how to classify triangles based on their angles and sides.
Triangle Classification Interactive
This video gives more detail about the mathematical principles presented in Triangle Classification.
This video shows how to work step-by-step through one or more of the examples in Triangle Classification.
A list of student-submitted discussion questions for Triangle Classification.
How many triangles can you identify in the world around you?
Learn about the only national flag that is not in the shape of a quadrilateral.
This study guide focuses on polygons: convex vs concave, interior and exterior angles, and basic terminology for common polygons.