# Quick Answer: What Is The 20 Sided Shape Called?

## What’s a twelve sided shape called?

dodecagonIn geometry, a dodecagon or 12-gon is any twelve-sided polygon..

## What is a shape with 21 sides called?

A circle is not a polygon, but a icosikaihenagon is a polygon. An icosikaihenagon is a 21-sided polygon.

## What is a shape with 100 sides called?

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

## 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 a 7 sided shape?

heptagonMore than Four Sides A six-sided shape is a hexagon, a seven-sided shape a heptagon, while an octagon has eight sides… The names of polygons are derived from the prefixes of ancient Greek numbers.

## What is the smallest shape?

Probably, the smallest shape in geometry is a circle.

## What is a 50 sided shape called?

pentacontagonIn geometry, a pentacontagon or pentecontagon or 50-gon is a fifty-sided polygon. The sum of any pentacontagon’s interior angles is 8640 degrees. A regular pentacontagon is represented by Schläfli symbol {50} and can be constructed as a quasiregular truncated icosipentagon, t{25}, which alternates two types of edges.

## What is a 20 sided 3d shape called?

icosahedronIn geometry, an icosahedron (/ˌaɪkɒsəˈhiːdrən, -kə-, -koʊ-/ or /aɪˌkɒsəˈhiːdrən/) is a polyhedron with 20 faces. The name comes from Ancient Greek εἴκοσι (eíkosi) meaning “twenty” and from Ancient Greek ἕδρα (hédra) meaning “seat”. The plural can be either “icosahedra” (/-drə/) or “icosahedrons”.

## What is the biggest sided shape?

megagonA megagon or 1 000 000-gon is a polygon with 1 million sides (mega-, from the Greek μέγας megas, meaning “great”). Even if drawn at the size of the Earth, a regular megagon would be very difficult to distinguish from a circle.

## 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 shape is stronger than a triangle?

The triangle is common in all sorts of building supports and trusses. The overall shape of many bridges is in the shape of a catenary curve. The catenary curve is the strongest shape for an arch which supports only its own shape.

## What is a shape with 10000 sides?

myriagonIn geometry, a myriagon or 10000-gon is a polygon with 10,000 sides. Several philosophers have used the regular myriagon to illustrate issues regarding thought.

## What is a 14 sided 2d shape called?

tetradecagonIn geometry, a tetradecagon or tetrakaidecagon or 14-gon is a fourteen-sided polygon.

## What is 11 sided shape called?

hendecagonIn geometry, a hendecagon (also undecagon or endecagon) or 11-gon is an eleven-sided polygon. (The name hendecagon, from Greek hendeka “eleven” and –gon “corner”, is often preferred to the hybrid undecagon, whose first part is formed from Latin undecim “eleven”.)

## What is a 2 sided shape?

In geometry, a digon is a polygon with two sides (edges) and two vertices. … A regular digon has both angles equal and both sides equal and is represented by Schläfli symbol {2}. It may be constructed on a sphere as a pair of 180 degree arcs connecting antipodal points, when it forms a lune.

## What is a 99 sided shape called?

EnneacontagonIn geometry, an enneacontagon or enenecontagon or 90-gon (from Ancient Greek ἑννενήκοντα, ninety) is a ninety-sided polygon.

## 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…

A 666-gon.