Question

The isosceles trapezoid is part of an isosceles triangle with a 34 degree vertex angle. What is the measure of an acute base angle of the trapezoid?

Answer 1

For the answer to the question above asking what is the measure of an acute base angle of the trapezoid?
n acute base angle of the trapezoid would be the same as the triangle. 

subtract 34º from 180º, then divide by 2. 

(180 - 34)/2 = 73º 
I hope my answer helped you.