What’S A 16 Sided Shape Called?

What is a 72 sided polygon called?


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

What is a 12 sided shape?

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

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 a 1000000 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”).

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 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.

How many sides does a 17 sided polygon?

Names of PolygonsNameSidesInterior AngleHeptadecagon17158.824°Octakaidecagon18160°Enneadecagon19161.053°Icosagon20162°28 more rows

What is a 33 sided shape called?

tritriacontagonWhat is the name of a polygon with…?#Name of the Polygon + Geometric Drawing33 sidestritriacontagon34 sidestetratriacontagon35 sidespentatriacontagon36 sideshexatriacontagon53 more rows

What is a 8 sided shape called?

octagonIn geometry, an octagon (from the Greek ὀκτάγωνον oktágōnon, “eight angles”) is an eight-sided polygon or 8-gon. A regular octagon has Schläfli symbol {8} and can also be constructed as a quasiregular truncated square, t{4}, which alternates two types of edges. A truncated octagon, t{8} is a hexadecagon, {16}.

What’s 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 10 sided shape?

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

What is a 100 sided shape?

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 11 sided polygon?

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 17 sided shape called?

heptadecagonIn geometry, a heptadecagon or 17-gon is a seventeen-sided polygon.

What’s a 13 sided shape called?

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

What is a 18 sided polygon called?

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

What is a 69 sided polygon called?

Systematic polygon namesTensand60hexaconta–kai-70heptaconta-80octaconta-90enneaconta-5 more rows