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Author:
Rachel Kaplan

Our objectives for this packet include:

-Understanding the sum of angles in a triangle

-The exterior angle theorem and how to use it

-Solving for angle measures algebraically, using these concepts

Through a powerpoint and several walkthrough videos, we will learn many properties about angles in a triangle and how to use them to solve problems.

Tutorial

Why angles of a triangle always add up to 180.

A step by step example of how to solve for angles of a triangle given algebraically, using the exterior angle theorem.

How to solve a triangle's angles when two angles are given algebraically and one is given in degree form.

A step-by-step problem of how to solve for the angles of a triangle if all three are given algebraically.