SOLUTION: Please help me solve this equation Find the angles of the triangle having the following vertices A(3,7), B(-6,4) and C(-2,8). Thank you so much.

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Question 1188226: Please help me solve this equation Find the angles of the triangle having the following vertices A(3,7),
B(-6,4) and C(-2,8). Thank you so much.
Found 2 solutions by Alan3354, Edwin McCravy:
Answer by Alan3354(69443)   (Show Source): You can put this solution on YOUR website!
Please help me solve this equation Find the angles of the triangle having the following vertices
A(3,7), B(-6,4) and C(-2,8). Thank you so much.
========================
Find the 3 side lengths.
For AB (side c):

Find the other 2 sides the same way, then use the Cosine Law to find angles.
Answer by Edwin McCravy(20060)   (Show Source): You can put this solution on YOUR website!
Instead of doing your homework for you, I'll do one exactly like yours, step by step, but with the numbers changed.

     

Now do yours exactly the same way. step-by-step.

Edwin
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