
What is the complementary angle of 42 degrees? Here we will define the complementary angle of 42 degrees, show you how to calculate the complementary angle of 42 degrees, and even illustrate the complementary angle of 42 degrees (42°) so you have a solid understanding of what it means.
The complementary angle of 42 degrees, also known as the complement angle of 42 degrees, is the angle that when added to 42 results in a sum of 90. Therefore, to calculate the complement angle of 42 degrees, we subtract 42 from 90. Here is the formula, the math, and the answer:
90 - angle = complement angle
90 - 42 = 48
48 degrees
42 degrees plus the complementary angle of 48 degrees equals 90 degrees, which means that together they will make an L-shaped 90-degree angle.
The illustration below shows 42 degrees colored in red and the complementary angle of 42 degrees, which is 48 degrees, colored in green.

As you can see from the illustration above, 42 degrees and 48 degrees form an L-shaped angle together. This proves that the two angles, 42 degrees and 48 degrees, are complementary angles.
Complementary Angle Calculator
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Complementary angle of 42.1 degrees
Here is another trigonometry math problem that we have illustrated and calculated the answer to.