Solving for an inteior angle given one interior angle and exterior angle in two ways ex 8

The video tutorial explains how to solve problems involving exterior and interior angles using the exterior angle theorem. It demonstrates two methods: one using the theorem directly and another using the concept of supplementary angles. The tutorial emphasizes understanding the relationships between angles in a triangle and provides step-by-step solutions to example problems.

Explain how to use the supplementary angles to find the missing angle.

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What should you remember about the sum of angles in a triangle?

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