SOLUTION: What is the measure of the vertex angle of the isosceles triangle if one of its base angles measure 56 degrees?

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Question 246815: What is the measure of the vertex angle of the isosceles triangle if one of its base angles measure 56 degrees?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
an isosceles triangle has two angles (base) equal.
2*56=112
now what is the third angle? how many degrees in all three interior angles?