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Mathematics 13 Online
OpenStudy (anonymous):

Use vectors to find the interior angles of the triangle with vertices (-3,0), (2,2),(0,6).

OpenStudy (anonymous):

I am not sure if I have to use the distance formula to find the distance between the points. But i am not sure what to do after that.

OpenStudy (anonymous):

use trig identities after finding the distances. afterwards you should get the raidans or degrees of angles.

OpenStudy (anonymous):

The law of cosines?

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