SEMATHS.ORG
Updated: 5 November 2021 05:47:00 AM

# What is a twenty sided shape called?

A 20 sided shape (polygon) is called Icosagon. This is called 1 quadrillion. Polygons are usually named according to the number of sides, combining a Greek-derived numerical prefix with the suffix -gon, e.g. What is the interior angle of a 20 sided polygon?

## Correspondingly what is a 21 sided polygon called?

A polygon with 21 sides is therefore called a: Icosikaihenagon, but also a Icosihenagon.

## Accordingly, the question is what is an 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

## Accordingly, we may wonder what is a 69 sided shape called?

Tejan Gupta answered this. Dear studebt, For such large number of sides we call them simply 69-gon and 96-gon.

#### What do you call an 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### What is the biggest shape?

Myriagon
Regular myriagon
Edges and vertices10000
Schläfli symbol{10000}, t{5000}, tt{2500}, ttt{1250}, tttt{625}
Coxeter diagram
Symmetry groupDihedral (D10000), order 2×10000

#### Is there a 7 sided shape?

A heptagon is a seven-sided polygon. It is also sometimes called a septagon, though this usage mixes a Latin prefix sept- (derived from septua-, meaning "seven") with the Greek suffix -gon (from gonia, meaning "angle"), and is therefore not recommended.

#### What is a 69 sided polygon called?

Tejan Gupta answered this. Dear studebt, For such large number of sides we call them simply 69-gon and 96-gon.

#### What is an 18 sided shape called?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### What is a 18 sided shape?

In geometry, an octadecagon (or octakaidecagon) or 18 – gon is an eighteen – sided polygon .

#### How many triangles are in a 18 gon?

NTriangles with 3 diagonal endpointsTotal Number of Triangles
1656037424
1768053516
1881673404
19969101745

#### What is a 99 sided shape called?

What is a 99 sided shape called? pentagon (5-gon), dodecagon (12-gon) or icosagon (20-gon) - with the triangle, quadrilateral and nonagon (9-gon) being notable exceptions.

#### What is the rarest shape?

Diamond. The diamond shaped face is the rarest of face shapes, and is defined by a narrow forehead, wide cheekbones and a narrow chin. Diamond shaped faces are usually narrower at the eye line and jaw line, with high and often dramatic cheekbones.

#### What is the most beautiful shape?

But the heart shape, otherwise more commonly known as a V-shaped face, has been scientifically proven to be the most visually attractive face shape to have. Heart-shaped faces like those of Hollywood star Reese Witherspoon are deemed as 'mathematically beautiful'.

#### What is the weirdest shape ever?

• 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.

#### Is any 3 sided polygon a triangle?

A three-sided polygon is a triangle.