Lesson: Triangle Angle Sum Theorem

In this lesson, we will learn how to find a missing angle in a triangle given the two other angles using the triangle angle-sum theorem.

Video

13:25

Q1:

If is a triangle in which and . Calculate the measures of angles , , and .

Q2:

In the triangle , , , and . Find the measure of each angle.

Q3:

Given that is a triangle in which , , and , determine .

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