Use the image to answer the question.
Use the Triangle Angle Sum Theorem to find the measure of the third angle of the triangle shown.
The Triangle Angle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.
In the triangle shown, two angles are labeled as 55 degrees and 65 degrees.
To find the measure of the third angle, we can subtract the sum of the two given angles from 180 degrees:
180 degrees - (55 degrees + 65 degrees) = 180 degrees - 120 degrees = 60 degrees
Therefore, the measure of the third angle of the triangle is 60 degrees.