What is the complementary angle to 75 degrees?

To determine the complementary angle to a given angle, one needs to know that two angles are considered complementary if the sum of their measures is 90 degrees. Given that the angle in question is 75 degrees, the complementary angle can be calculated by subtracting 75 from 90.

90 degrees - 75 degrees = 15 degrees.

Thus, the complementary angle to 75 degrees is indeed 15 degrees. This formulation reflects the fundamental principle of complementary angles, providing a clear and precise identification of the correct answer.