What is the supplementary angle of 74.2 degrees? Here we will define the supplementary angle of 74.2 degrees, show you how to calculate the supplementary angle of 74.2 degrees, and even illustrate the supplementary angle of 74.2 degrees (74.2°) so you have a solid understanding of what it means.
The supplementary angle of 74.2 degrees, also known as the supplement angle of 74.2 degrees, is the angle that when added to 74.2 results in a sum of 180. Therefore, to calculate the supplement angle of 74.2 degrees, we subtract 74.2 from 180. Here is the formula, the math, and the answer:
180 - angle = supplement angle
180 - 74.2 = 105.8
105.8 degrees
74.2 degrees plus the supplementary angle of 74.2 degrees equals 180 degrees, which means that together they will make a straight line.
The illustration below shows 74.2 degrees colored in red and the supplementary angle of 74.2 degrees, which is 105.8 degrees, colored in green.
As you can see from the illustration above, 74.2 degrees and 105.8 degrees form a straight line together. This proves that the two angles, 74.2 degrees and 105.8 degrees, are supplementary angles.
Supplementary Angle Calculator
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