The complementary angle of 35 degrees is 55 degrees.
To find the complementary angle, you simply subtract the given angle from 90 degrees. This is because complementary angles are two angles that add up to 90 degrees. In this case, you take 90 degrees and subtract 35 degrees:
90° – 35° = 55°
This shows that 55 degrees is the angle that, when added to 35 degrees, results in 90 degrees, making them complementary.