SOLUTION: What is the measure of each base angle of an isosceles triangle if it's vertex angle measures 40 degrees and it's 2 congruent sides measures 11 units?

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Question 1072933: What is the measure of each base angle of an isosceles triangle if it's vertex angle measures 40 degrees and it's 2 congruent sides measures 11 units?
Answer by josgarithmetic(39617) About Me  (Show Source):
You can put this solution on YOUR website!
The side lengths are not needed.

180-40=140, the sum of the two congruent base angles

140%2F2=highlight%2870%29, each base angle measure