2. The angle with the measure 120 degrees is an exterior angle of the triangle. This means that the measure of this angle is the sum of x and the 60 degree angle. Therefore, we can create an equation and solve for x with this information:
x + 60 = 120
x = 60
3. In this question, we are finding the value of x, the exterior angle of this triangle. The value of x is simply the sum of the 90 and 30 degree angle, so we can add these angles to get: x = 120.
