# supplementary angle

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Related to supplementary angle: Pythagorean theorem, polygon, Perpendicular Lines
supplementary angle
Each of the two angles shown is a supplementary angle to the other one.

## supplementary angle

n.
The angle or arc that when added to a given angle or arc makes 180° or a semicircle.

## supplementary angle

n
(Mathematics) either of two angles whose sum is 180°. Compare complementary angle

## sup′plemen′tary an′gle

n.
either of two angles that added together produce an angle of 180°. Compare complementary angle.
References in periodicals archive ?
Thus, it can be deduced from (27) that the jamming is distributed within a slant plane, and the incline angle of the slant plane is equal to the supplementary angle of InSAR's depression angle [alpha].
She demonstrated the congruence of triangles ABD and ACD by SSS, and then triangles ABE and ACE by SAS in order to conclude the supplementary angles [angle] AEB and [angle] AEC are congruent and therefore right.
However, the "toy" can be revisited to revise the concepts of complementary and supplementary angles and their application in the proof.

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