Math 6 Chapter 2 Lesson 9: Triangles

Math 6 Chapter 2 Lesson 9: Triangles 1. Summary of theory 1.1. What is triangle ABC? Define: Triangle ABC is a figure consisting of three line segments AB; BC; CA when three points A; B; C is not aligned. Sign: The triangle ABC is denoted by (Delta ABC). We also call the name and symbol …

Home Source Education online