Answer:
96°
Step-by-step explanation:
The sum of the exterior angles of a polygon is always 360°.
Hence, the sum of the 3 exterior angles of a triangle is also 360°
Sum of 2 of these angles are given as 264°. So it follows that:
264° + third angle = 360°
third angle = 360° - 264° = 96°
So, measure of the third exterior angle is 96°.