Final answer:
To find the sum of the angle measures of a triangle, add the measures of the three angles.
Step-by-step explanation:
To find the sum of the angle measures of a triangle, you need to add the measures of the three angles. The equation that represents the sum of the angle measures of a triangle is:
Angle1 + Angle2 + Angle3 = 180
For example, if Angle1 measures 50 degrees, Angle2 measures 70 degrees, and Angle3 measures 60 degrees, the sum of the angle measures would be 50 + 70 + 60 = 180 degrees.