Worked example: Triangle angles (diagram) (Full video)

Khan Academy
Supporting grades: 8

Description: Worked examples finding angles in triangles that are part of diagrams. Created by Sal Khan. And what I want to do is see if I can figure out the measure of this angle right here. That means that these are right angles or that they have a measure of 90 degrees. And maybe we can solve this in multiple different ways.

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