Side
"side" is referenced in the pages listed below.
Describes how the smallest angle is opposite the shortest side, and the largest angle is opposite the longest side.
Adjacent sides definition: Two lines that meet at a polygon vertex.
Similar triangles  all three sides in same proportion. SSS
The sides of a polygon are defined and two formulas for finding the side length for a regular polygon.
Congruent triangles  all three sides equal. SSS
Included side definition: The common leg of two angles.
Similar triangles  two sides in same proportion, included angle the same. SAS
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