Instructional Video

Khan Academy: Solving for a Side With the Law of Cosines

Curated by ACT

Learn how to use the law of cosines to find the missing side length of a triangle when given two side lengths and the contained angle measure.

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CCSS: Adaptable
Classroom Considerations
  • Knovation Readability Score: 4 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional