Question

In the figure below, triangle ABC is an isosceles triangle where line AB is equal to line BC. If the measure of angle C is 35° , and the measure of angle ABD is 4/5 the measure of angle ABC, what is the measure of angle BDA?

110°

88°

57°

35°

22°

Answer 1

since you know one of the angles of an isosceles triangle you can always determine the other two.
Determine these 2 first

Answer 2

hmmm.....