> Chapter 3: Angles of Triangles > Section Exercises 3.2 > Exercise 1 You know the measures of two interior angles of a triangle. How can you find the measure of the third interior angle?
O Subtract the sum of the given measures from 90°.
O Subtract the sum of the given measures from 180°.
O Add the sum of the given measures to 90°.
O Add the sum of the given measures to 180°.
1
O Add together the two given interior angles.