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Top suggestions for How to Find X Angle in a Triangle
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How to Find Missing
Angles in a Triangle
How to Calculate the
Angle of a Triangle
How to Find Angles in
Trigonometry
How to Find the Angle
of a Right Triangle
5:42
Khan Academy
Sal Khan
Worked example: Triangle angles (diagram)
We have a right triangle that's split into several smaller right triangles. The angle measures in any triangle always add up to 180 degrees. By using this fact and looking at complementary (adding up to 90 degrees) and supplementary (adding up to 180 degrees) angles, we can find the missing angle measures in the triangles.
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