Let x be the measure of the angle in degrees.
We know that the measure of its complementary angle is 90 - x degrees.
According to the problem, the angle measures 56.8 degrees less than its complementary angle.
So:
x = (90 - x) - 56.8
Solving for x:
2x = 90 - 56.8
2x = 33.2
x = 16.6
Therefore, the angle measures 16.6 degrees and its complementary angle measures 73.4 degrees.