Use the image to answer the question.
An illustration shows a triangle with vertices as A B C. Angle A on top is 120 degrees and angle B on the left is 34 degrees. Vertex C is on the right.
Use the Triangle Angle Sum Theorem to find the measure of the third angle of the triangle shown.
(1 point)
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The sum of the three angles in a triangle is always 180 degrees.
So, to find the measure of the third angle, we can add the measures of angle A and angle B, and subtract the sum from 180 degrees:
120 degrees + 34 degrees = 154 degrees
180 degrees - 154 degrees = 26 degrees
Therefore, the measure of the third angle, angle C, is 26 degrees.