Classification of triangles
See curriculum details and comments
See curriculum details and comments
See curriculum details and comments
Lesson 001: Triangle inequalities
Lesson 002: Naming triangles and constructions in the scalene triangle
Lesson 003: Isosceles Triangles
Lesson 004: Equilateral triangles
Lesson 005: Concurrency
Lesson 006: Triangle theorems
Lesson 007: Triangles and other Geometric Properties
Lesson 008: Similarity in Triangles
Lesson 009: Application of Similarity
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About this topic
Triangles have fascinated people since ancient times. We see the triangle shape being used in many buildings and constructions in the world around us. In this series of lessons, we study the properties of triangles and find ways of identifying triangles by their properties. We construct, measure and compare the lengths of the sides and the sizes of the angles. Learners discover important properties of seven types of triangles and investigate their lines of symmetry. We also investigate two triangle theorems and use similarity of triangles to solve problems.









