What is the supplementary angle of 120.1 degrees? Here we will define the supplementary angle of 120.1 degrees, show you how to calculate the supplementary angle of 120.1 degrees, and even illustrate the supplementary angle of 120.1 degrees (120.1°) so you have a solid understanding of what it means.
The supplementary angle of 120.1 degrees, also known as the supplement angle of 120.1 degrees, is the angle that when added to 120.1 results in a sum of 180. Therefore, to calculate the supplement angle of 120.1 degrees, we subtract 120.1 from 180. Here is the formula, the math, and the answer:
180 - angle = supplement angle
180 - 120.1 = 59.9
59.9 degrees
120.1 degrees plus the supplementary angle of 120.1 degrees equals 180 degrees, which means that together they will make a straight line.
The illustration below shows 120.1 degrees colored in red and the supplementary angle of 120.1 degrees, which is 59.9 degrees, colored in green.
As you can see from the illustration above, 120.1 degrees and 59.9 degrees form a straight line together. This proves that the two angles, 120.1 degrees and 59.9 degrees, are supplementary angles.
Supplementary Angle Calculator
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