SOLUTION: Given only the coordinates of the vertices of a triangle how would you verify that the triangle has congruent base angles?

Question 309339: Given only the coordinates of the vertices of a triangle how would you verify that the triangle has congruent base angles?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Given only the coordinates of the vertices of a triangle how would you verify that the triangle has congruent base angles?
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Use the distance formula to find the length of the 3 sides: a,b,c
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Use the Law of Cosines to find the measure of two angles.
Cos(A) = [b^2 + c^2 - a^2]/[2bc]
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Subtract their sum from 180 to find the meansure of the third angle.
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Cheers,
Stan H.
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