supplementary angles


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Related to supplementary angles: Alternate angles, Adjacent Angles

sup·ple·men·ta·ry angles

(sŭp′lə-mĕn′tə-rē)
Two angles whose sum is 180°.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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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.
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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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They also can pair with a classmate and form complementary and supplementary angles in ways that defy forgetting.
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