Question: Use vectors to find the interior angles of the triangle with the given vertices. 1. (1, 2), (3, 4), (2, 5) 2. (3, 4), (1,

Use vectors to find the interior angles of the triangle with the given vertices.
1. (1, 2), (3, 4), (2, 5)
2. (−3, −4), (1, 7), (8, 2)

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