Answer:
C
Step-by-step explanation:
the bottom 2 angles are congruent or they have the same measure, and you can find the interior angles because they are linear pairs with the exterior angle.
so you do 180-108 to get 72, and if you multiply that by 2, you find the measure of the sum of the 2 bottom angles. Becuase the sum of the angles of a triangle is 180 degrees, you can subtract that sum (144) and you can get 36 degrees
