a monogon or henagon
It's called a monogon. 2 sided shape is digon like semi=circle. Alright this is getting chaos.
henagon (or monogon) 1digon 2triangle (or trigon) 3quadrilateral (or tetragon) 4pentagon 5hexagon 6heptagon 7octagon 8enneagon (or nonagon) 9decagon 10hendecagon 11dodecagon 12
a 2 sided shape is real but a 1 sided shape is not
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Yes a monogon
a monogon or henagon
Oh, dude, a monogon is a shape with just one side. Yeah, like a single line segment pretending to be a polygon. It's like the loner of the geometry world, hanging out all by itself with no sides to chat with.
henagon (or monogon)* * * * * A pentadecagon. But I prefer 15-gon since it is obvious what that means - without reference to a dictionary.
Yes. A digon can have 2 sides, but only in a spherical geometry. In normal Euclidean geometry both the monogon and the digon have just 1 side.
henagon (or monogon) 1digon 2triangle (or trigon) 3quadrilateral (or tetragon) 4pentagon 5hexagon 6heptagon 7octagon 8enneagon (or nonagon) 9decagon 10hendecagon 11dodecagon 12
a 2 sided shape is real but a 1 sided shape is not
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monogon -------------------- 3: Triangle 4: Quadrilateral 5: Pentagon 6: Hexagon 7: Heptagon 8: Octagon 9: Nonagon 10: Decagon There are names for some polygons with a higher number of sides, but these are rarely used. Typically we use the phrase "n-gon." Thus, a 69-sided polygon would be referred to as a 69-gon.
Names of Polygons1 monogon (Monogon and digon can only2 digon be used in rather special3 trigon, triangle circumstances. Trigon and4 tetragon, quadrilateral tetragon are alternatives to5 pentagon triangle and quadrilateral;6 hexagon the adjectival forms trigonal7 heptagon and tetragonal are more common.)8 octagon9 enneagon10 decagon11 hendecagon12 dodecagon13 triskaidecagon14 tetrakaidecagon, tetradecagon15 pentakaidecagon, pentadecagon16 hexakaidecagon, hexadecagon17 heptakaidecagon18 octakaidecagon19 enneakaidecagon20 icosagon21 icosikaihenagon, icosihenagon22 icosikaidigon23 icosikaitrigon24 icosikaitetragon25 icosikaipentagon26 icosikaihexagon27 icosikaiheptagon28 icosikaioctagon29 icosikaienneagon30 triacontagon31 triacontakaihenagon32 triacontakaidigon33 triacontakaitrigon34 triacontakaitetragon35 triacontakaipentagon36 triacontakaihexagon37 triacontakaiheptagon38 triacontakaioctagon39 triacontakaienneagon40 tetracontagon41 tetracontakaihenagon42 tetracontakaidigon43 tetracontakaitrigon44 tetracontakaitetragon45 tetracontakaipentagon46 tetracontakaihexagon47 tetracontakaiheptagon48 tetracontakaioctagon49 tetracontakaienneagon50 pentacontagon ...60 hexacontagon ...70 heptacontagon ...80 octacontagon ...90 enneacontagon ...100 hectogon, hecatontagon1000 chiliagon10000 myriagon
There are many shapes that have fewer than 3 vertices like the circle, hyperbola, semi circle, and many others. However if you are only talking about polygons then there is no actual shape with fewer than 3 vertices that you can find in a real life situation but they do have names for these shapes. A 2-sided polygon is known as a digon. A 1-sided polygon is known as a monogon. These shapes only exist in theory however and not in real life.
monogon, digon, trigon, tetragon, pentagon, hexagon, heptagon, octagon, nonagon, decagon, hendecagon, dodecagon, tridecagon, tetradecagon, pentadecagon, hexadecagon, heptadecagon, octadecagon, enneadecagon, icosagon, hencosagon, dicosagon, tricosagon, tetracosagon, pentacosagon