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This page from MathWorld.com gives a good explanation of the Law of Cosines, which relates the lengths of the legs of a triangle to the angles. This site shows how the formula is derived, along with a triangle to clarify variables. Also provides more advanced properties, proofs, and applications of the Law of Cosines.
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CCSS:
Adaptable
Concepts
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Classroom Considerations
- Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
- This resource is only available on an unencrypted HTTP website.It should be fine for general use, but don’t use it to share any personally identifiable information