# Law of Cosines

## Relationship between the three sides and an angle for non-right triangles.

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Law of Cosines

by CK-12 //at grade
Use Law of Cosines and Law of Sines in different triangle situations
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## Law of Cosines

by CK-12 //at grade
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## Law of Cosines with SAS

by Chris Campbell //at grade
Use Law of Cosines and Law of Sines in different triangle situations
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## Law of Cosines

by Caitlin Polzin //at grade
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## Law of Cosines

by EPISD Precalculus Team //at grade
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• PLIX

## Law of Cosines: Angles in the Outfield

by CK-12 //at grade
Law of Cosines Interactive
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## Law of Cosines: Get on Base

by CK-12 //at grade
Law of Cosines Interactive
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## Baseball Diamond

by CK-12 //at grade
Law of Cosines Interactive
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## Building a Zip Line

by CK-12 //at grade
Law of Cosines Interactive
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• Video

## The Law of Cosines

by CK-12 //at grade
Gives an example of using the Law of Cosines formula to find the length of a triangle's missing side.
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