# What Do You Call A 9 Sided Shape?

## What is a 30 sided shape called?

triacontagonIn geometry, a triacontagon or 30-gon is a thirty-sided polygon.

The sum of any triacontagon’s interior angles is 5040 degrees..

## What is the most sided 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.

## How many sides is a Hectagon?

2D ShapesTriangle – 3 SidesSquare – 4 SidesPentagon – 5 SidesHexagon – 6 sidesHeptagon – 7 SidesOctagon – 8 SidesNonagon – 9 SidesDecagon – 10 SidesMore …

## What are the 16 basic shapes?

Terms in this set (16)equilateral triangle. A triangle with all sides of equal length.isosceles triangle. A triangle with two sides of equal length.scalene triangle. A triangle with no sides of equal length. … scalene right triangle. … isosceles right triangle. … square. … rectangle. … parallelogram.More items…

## What do you call an 11 sided shape?

In 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’s a 13 sided shape called?

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

## What’s a 20 sided shape called?

IcosagonIn geometry, an icosagon or 20-gon is a twenty-sided polygon. The sum of any icosagon’s interior angles is 3240 degrees.

## What is a 28 sided shape called?

icosioctagonIn geometry, an icosioctagon (or icosikaioctagon) or 28-gon is a twenty eight sided polygon. The sum of any icosioctagon’s interior angles is 4680 degrees.

## What is a 72 sided shape called?

pentagonA regular pentagon has: Interior Angles of 108° Exterior Angles of 72°

## What is a 7 sided 3d shape?

heptahedronA heptahedron (plural: heptahedra) is a polyhedron having seven sides, or faces. A heptahedron can take a large number of different basic forms, or topologies. Probably most familiar are the hexagonal pyramid and the pentagonal prism.

## What do you call a 10 sided shape?

In geometry, a decagon (from the Greek δέκα déka and γωνία gonía, “ten angles”) is a ten-sided polygon or 10-gon. The total sum of the interior angles of a simple decagon is 1440°.

## What do you call a 12 sided shape?

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

## 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 14 sided shape called?

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

## What is an 80 sided shape called?

octacontagonIn geometry, an octacontagon (or ogdoëcontagon or 80-gon from Ancient Greek ὁγδοήκοντα, eighty) is an eighty-sided polygon. The sum of any octacontagon’s interior angles is 14040 degrees.

## What is a 60 sided shape called?

hexacontagonIn geometry, a hexacontagon or hexecontagon or 60-gon is a sixty-sided polygon. The sum of any hexacontagon’s interior angles is 10440 degrees.

## What is a 7 sided shape called?

heptagonA 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 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.

## How many sides does a regular polygon have?

Names of Regular PolygonsRegular PolygonNumber of SidesExterior AnglesEquilateral triangle3 sides3 exterior angles of 120°Square4 sides4 exterior angles of 90°Regular pentagon5 sides5 exterior angles of 72°Regular hexagon6 sides6 exterior angles of 60°2 more rows

## What is a shape with 1 billion sides called?

gigagonA gigagon is a two-dimensional polygon with one billion sides.

## What is a 25 sided shape called?

icosikaipentagonA polygon with 25 sides is called a icosikaipentagon.