How Many Unique Triangles | 7.G.A.2

In this math video we will determine how many unique triangles can be formed from a proposed list of angle measures. We will begin by reviewing the Triangle Angle Theorem which states that the three interior angles of a triangle must have a sum of 180 degrees. We will add the three given angle measures to apply this theorem. Since the angle measures given do not have a sum of 180 degrees, we will conclude that the answer is none. An exemplar solution is modeled and explained.