# Quick Answer: What Is 13 Sided Shape Called?

## What is a 100 sided shape 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 18 sided polygon called?

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

## What is a 50 sided shape called?

pentacontagonIn geometry, a pentacontagon or pentecontagon or 50-gon is a fifty-sided polygon.

## What is a 2 sided shape?

In geometry, a digon is a polygon with two sides (edges) and two vertices. … Its construction is degenerate in a Euclidean plane because either the two sides would coincide or one or both would have to be curved; however, it can be easily visualised in elliptic space.

## What is the 12 sided shape called?

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

## What do u call a 11 sided shape?

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 69 sided polygon called?

Systematic polygon namesTensOnes60hexaconta-670heptaconta-780octaconta-890enneaconta-95 more rows

## What is a 72 sided polygon called?

pentagonProperties. A regular pentagon has: Interior Angles of 108° Exterior Angles of 72°

## 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 do you call a 16 sided shape?

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

## What is a 70 sided shape called?

heptacontagonIn geometry, a heptacontagon (or hebdomecontagon from Ancient Greek ἑβδομήκοντα, seventy) or 70-gon is a seventy-sided polygon. The sum of any heptacontagon’s interior angles is 12240 degrees.

## What is a 1 billion sided shape called?

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….Megagon.Regular megagonTypeRegular polygonEdges and vertices10000007 more rows

## What is a 14 sided shape called?

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

## What is a 15 sided shape called?

pentadecagonIn geometry, a pentadecagon or pentakaidecagon or 15-gon is a fifteen-sided polygon.

## What is a 99 sided shape called?

Polygons with 21 to 99 sides have a different system. Take the prefix for the tens digit (found on the left column), the ones digit (right column below), and then stick a “kai” between them to get (tens)kai(ones)gon . The 3-digit sided polygons are named in a similar fashion. A 100-sided polygon is called a hectogon.

## What is a 10 sided shape?

In geometry, a decagon is a ten-sided polygon or 10-gon.