What is the supplementary angle of 140 degrees? Here we will define the supplementary angle of 140 degrees, show you how to calculate the supplementary angle of 140 degrees, and even illustrate the supplementary angle of 140 degrees (140°) so you have a solid understanding of what it means.
The supplementary angle of 140 degrees, also known as the supplement angle of 140 degrees, is the angle that when added to 140 results in a sum of 180. Therefore, to calculate the supplement angle of 140 degrees, we subtract 140 from 180. Here is the formula, the math, and the answer:
180 - angle = supplement angle
180 - 140 = 40
40 degrees
140 degrees plus the supplementary angle of 140 degrees equals 180 degrees, which means that together they will make a straight line.
The illustration below shows 140 degrees colored in red and the supplementary angle of 140 degrees, which is 40 degrees, colored in green.
As you can see from the illustration above, 140 degrees and 40 degrees form a straight line together. This proves that the two angles, 140 degrees and 40 degrees, are supplementary angles.
Supplementary Angle Calculator
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Supplementary angle of 140.1 degrees
Here is another trigonometry math problem that we have illustrated and calculated the answer to.