Answer:
the vertex is 70 degrees and the other 2angles are 55 degrees each
in a triangle the angles must total to 180 degrees.
if the exterior angle is 110 degrees the supplementary angle of this angle would be = 180-110= 70 degrees
as it is an isosceles triangle the other two angles must be equal.
such that x+x+70= 180 , where x are the angles of the base
2x= 180-70
2x=110
x=110/2
x= 55
Step-by-step explanation:
