Question

Use vectors to find the intererior angles of the triangle with the given vertices
(-3, 0) (2, 2) and (0, 6)

Answer 1

zero out one of the points; and what you do to it you have to do to the others

Answer 2

Different question, sorry.

Answer 3

Got this one on myself but realized I don't need to do it.

Answer 4

(-3, 0) (2, 2) (0, 6)
+3 +3 +3
----------------------
0,0 <5,2> <3,6>

this creates 2 vectors to test

:)