In triangle ABC, one angle is 27 degrees and the other is 34 degrees. How many degrees is the third angle?

Let’s calculate the sum of the degree measures of two known angles in the triangle, for this we add the degree measures of the first and second angles:

27 + 34 = 61 °.

The sum of all the degree measures of the three angles in the triangle is 180 °.

Let’s calculate the degree measure of the third angle in the triangle, for this we subtract the sum of the degree measures of the first and second angles from the sum of all three angles:

180 – 61 = 119 °.

Answer: The degree measure of the third angle is 119 °.