Lesson: Angle Bisector Theorem and Its Converse Mathematics • First Year of Secondary School

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In this lesson, we will learn how to use the angle bisector theorem and its converse to find a missing side length in a triangle.

Students will be able to

use the interior and exterior angle bisectors to find missing side lengths in a triangle,
solve equations that are formed from using the angle bisector theorem,
use the converse of the angle bisector theorem to solve problems,
find the lengths of the bisectors of the interior and exterior angles of a triangle.