Lesson: Introduction to Inequalities in Triangles Mathematics • Second Year of Preparatory School

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In this lesson, we will learn how to define the concept of inequality in general and the axioms of inequality and compare between the measures of angles given in a triangle.

Lesson Plan

Students will be able to

form inequalities for the angles and sides in a triangle,
understand and use the axioms of inequality which state that
- if , then ,
- if , then ,
- if and , then ,
- if and , then ,
- if and , then ,
use the axioms of inequalities to solve problems about triangles.