SOLUTION: The measure of the vertex angle of an isosceles triangle is 50 degrees. Find the measure of an exterior angle to one of the base angles of the triangle.

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Question 1101838: The measure of the vertex angle of an isosceles triangle is 50 degrees. Find the measure of an exterior angle to one of the base angles of the triangle.
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Interior base angle each b
50%2B2b=180
25%2Bb=90
b=90-25
b=65

Exterior angle at the base, x.
x%2Bb=180, because supplementary
x=180-b
x=180-65
highlight%28x=115%29