On triangle ABC, angle C is 120 degrees. Line segment AC= 10, BC= 6. How do I find the length of the line segment AB?

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- Jun 1st 2010, 07:57 PMdnntauTriangle problem.
On triangle ABC, angle C is 120 degrees. Line segment AC= 10, BC= 6. How do I find the length of the line segment AB?

- Jun 1st 2010, 08:27 PMAmer
use cosine law see this

Law of cosines - Wikipedia, the free encyclopedia