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Law of Cosines

Law of Cosines

The Law of Cosines describes fundamental properties of triangles. Use this Formula Solver! Series program to learn how it works (and to check your homework answers, too!)
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Kaitlyn Fiechtner
Kaitlyn Fiechtner (Student)
8 years ago
Good explanation of how to use law of cosines.

Technical Remarks:

I'm not sure if it was simply my computer, but I couldn't plug in my own values to get an answer. Is there a "calculate" button or something else I missed?