Instructional Video

Khan Academy: Geometry: Triangle Angle Example 2

Curated by ACT

Shows how to find the measure of missing angles using the triangle sum theorem and vertical angles. This video also appears in the Geometry: Triangles strand. [4:55]

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CCSS: Adaptable
Concepts
exterior angles, triangle sum theorem, vertical angles
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Additional Tags
angle-sum theorem, determining unknown angle measures, parallel lines cut by transversal, remote interior angles, khan academy, khan academy math
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Resource Details
Grade
9th - 10th
Subjects
Math
2 more...
Resource Type
Instructional Videos
Audiences
For Administrator Use
2 more...
Lexile Measures
0L
Common Core
8.G.A.5