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Lesson: Types of Triangles: Sides Mathematics • 3rd Grade

In this lesson, we will learn how to classify triangles as equilateral, isosceles, or scalene by considering the lengths of their sides.

Lesson Plan

Lesson Video

Video Thumbnail
08:47

Lesson Playlist

  • Identifying Isosceles Triangles
    01:00
  • Identifying the Types of Triangles Based on Their Sides
    01:07
  • Finding the Missing Side Length of an Equilateral Triangle in a Real-World Context
    02:00

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