SOLUTION: The vertex of an isoceles trangle is twice the measure of each base angle. What is the measure of the vertex angle?

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Question 935235: The vertex of an isoceles trangle is twice the measure of each base angle. What is the measure of the vertex angle?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
v, vertex angle;
b, each base angle;
v=2b as given.
v%2B2b=180.
Solve...


Vertex angle measure, v, is 90 degree. If you are clever, you would take the first equation and substitute for 2b in the second equation.