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Sides Names
3 triangle
4 quadrilateral
5 pentagon
6 hexagon
7 heptagon
8 octagon
9 nonagon,enneagon
10 decagon
11 undecagon,hendecagon
12 dodecagon
13 tridecagon
14 tetradecagon
15 pentadecagon
16 hexadecagon
17 heptadecagon
18 octadecagon
19 enneadecagon
20 icosagon
they came from how many sides are on the polygon
icosagon
Here are a few: Rectangle, Square, Polygon, four sided shape, A shape with Unequal Adjacent Sides
quadrilateral , trapezoid ,polygon ,not a parallelogram
Using standardized polygon names, a 54-sided polygon would be called a pentacontakaitetragon.