# Is There A 20 Sided Shape?

## What is a 18 sided shape?

An 18-sided polygon, sometimes also called an octakaidecagon..

## What do you call a 20 sided die?

icosahedronThe icosahedron – 20-sided polyhedron – is frequent. Most often each face of the die is inscribed with a number in Greek and/or Latin up to the number of faces on the polyhedron.

## How many triangles are in a 20 Gon?

There are 20C3 = 1140 ways to choose three vertices that form a triangle. Of these, there are 20 triangles with two side lengths on the perimeter of the regular polygon. Also, for each side, there are 16 points that can make a triangle with exactly one side length on the 20-gon.

## What is 22 sided polygon called?

icosidigonIn geometry, an icosidigon (or icosikaidigon) or 22-gon is a twenty-two-sided polygon.

## What is a 25 sided shape called?

pentacosagonlinenumber of sidesname of polygon23icosikaitrigon or tricosagon24icosikaitetragon or tetracosagon25icosikaipentagon or pentacosagon26icosikaihexagon or hexacosagon38 more rows•Apr 6, 2006

## What is a 1 trillion sided shape called?

ApeirogonsIn geometry, an apeirogon (from the Greek words “ἄπειρος” apeiros: “infinite, boundless”, and “γωνία” gonia: “angle”) or infinite polygon is a generalized polygon with a countably infinite number of sides. Apeirogons are the two-dimensional case of infinite polytopes.

## What is the biggest shape?

In geometry, the rhombicosidodecahedron, is an Archimedean solid, one of thirteen convex isogonal nonprismatic solids constructed of two or more types of regular polygon faces.It has 20 regular triangular faces, 30 square faces, 12 regular pentagonal faces, 60 vertices, and 120 edges.More items…

## What is a 24 sided shape called?

icositetragonIn geometry, an icositetragon (or icosikaitetragon) or 24-gon is a twenty-four-sided polygon. The sum of any icositetragon’s interior angles is 3960 degrees.

## What is a 16 sided shape called?

hexakaidecagonIn mathematics, a hexadecagon (sometimes called a hexakaidecagon or 16-gon) is a sixteen-sided polygon.

## What is a 21 sided shape called?

icosikaihenagonAn icosikaihenagon is a 21-sided polygon.

## What is a 9999 sided shape called?

nonanonacontanonactanonaliagonWhat do you call a 9999-sided polygon? A nonanonacontanonactanonaliagon.

## What is a 1000000000000000 sided shape called?

In geometry, a chiliagon (/ˈkɪliəɡɒn/) or 1000-gon is a polygon with 1,000 sides. Philosophers commonly refer to chiliagons to illustrate ideas about the nature and workings of thought, meaning, and mental representation.

## What is a 1 billion sided shape called?

megagonThe megagon is also used as an illustration of the convergence of regular polygons to a circle.

## What’s a 13 sided shape called?

tridecagonIn geometry, a tridecagon or triskaidecagon or 13-gon is a thirteen-sided polygon.

## Is there a 100 sided shape?

In geometry, a hectogon or hecatontagon or 100-gon is a hundred-sided polygon. The sum of all hectogon’s interior angles are 17640 degrees.

## How many faces does a 20 sided polygon have?

In geometry, an icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a polyhedron with 20 faces….Pyritohedral symmetry.Pyritohedral and tetrahedral symmetriesFaces20 triangles: 8 equilateral 12 isoscelesEdges30 (6 short + 24 long)Vertices128 more rows