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Supplementary Angles Formula
Before going to learn what is supplementary angles formula, first, let us recall what are supplementary angles. Two angles are said to be supplementary if their sum is 180° and in this case, one angle is said to be the supplement of the other. We use this fact to derive the supplementary angles formula.
What Is Supplementary Angles Formula?
We come across the concept of supplementary angles while solving many problems related to different shapes. The supplementary angles formula is used to:
determine whether two angles are supplementary.
find the supplement of an angle.
Two angles x° and y° are said to be supplementary if
x° + y° = 180°
The supplement of an angle x° is obtained by subtracting it from 180°.
Supplement of x° = (180 - x)°
Let us see the applications of the supplementary angles formulas in the following section.
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