Assignment:
Please give a through explanation to the following.
Answer true or false.
a. If each of two isosceles triangles has an angle that measures 120 degrees, then the two isosceles triangles must be similiar.
b. If each of two isosceles triangles has an angle that measures 40 degrees, then the two isosceles triangles must be similiar.
Provide complete and step by step solution for the question and show calculations and use formulas.