Curated Video
Classifying Polygons by Perpendicular Sides
In this video lesson, we explain the concept of perpendicular lines and demonstrate how to identify them in different shapes. By the end of the lesson, students will be able to categorize polygons based on the number of pairs of...
Khan Academy
Khan Academy: Classifying Shapes by Line and Angles Types
Sal categorizes shapes based on their sides and angles.
Khan Academy
Khan Academy: Classifying Triangles by Angles
You say you can't categorize a triangle because you don't know the length of the sides. Guess what? If you know the size of the angles you can!
Khan Academy
Khan Academy: Classifying Triangles
Learn to categorize triangles as scalene, isosceles, equilateral, acute, right, or obtuse.
Khan Academy
Khan Academy: Worked Example: Classifying Triangles
Work through sample problems categorizing triangles as scalene, isosceles, equilateral, acute, right, or obtuse.
Study Pug
Study Pug: Understanding the Number Systems
Numbers can be categorized more specifically into different number systems, for instances, natural numbers, whole numbers, integers, rational numbers, and irrational numbers. In this video, you will learn how to classify numbers into...