icosihenagon
A twenty-one-ogon.
The names of polygons with sides ranging from 21 to 30 are as follows: a 21-sided polygon is called a icosagon, a 22-sided polygon is a dicosagon, a 23-sided polygon is a tricosagon, a 24-sided polygon is a tetracosagon, a 25-sided polygon is a pentacosagon, a 26-sided polygon is a hexacosagon, a 27-sided polygon is a heptacosagon, a 28-sided polygon is an octacosagon, a 29-sided polygon is a nonacosagon, and a 30-sided polygon is a triacontagon.
Icosikaihenagon, or also known as Henicosagon.
Polygons with 21 to 100 sides are named using a combination of Greek or Latin prefixes and the suffix "-gon." For example, a polygon with 21 sides is called a "icosagon," while a 22-sided polygon is a "dicosagon." This naming convention continues up to 100 sides, where a polygon with 100 sides is known as a "hectogon." Each name typically combines the prefix indicating the number of sides with the "-gon" suffix.
A shape with 21 sides is called a 21-gon. In geometry, polygons are named based on the number of sides they have, and a 21-gon specifically refers to a polygon with 21 straight edges and vertices. It can be categorized as a regular 21-gon if all sides and angles are equal.
An icosikaihena is a polygon with 21 sides
A polygon with 21 sides is called an Icosagon.
icosikaihenagon
It will have 21 sides or a 21-gon
So, the Sum of the interior angles for a 21 – sided polygon is equal to 3420°.
A twenty-one-ogon.
The names of polygons with sides ranging from 21 to 30 are as follows: a 21-sided polygon is called a icosagon, a 22-sided polygon is a dicosagon, a 23-sided polygon is a tricosagon, a 24-sided polygon is a tetracosagon, a 25-sided polygon is a pentacosagon, a 26-sided polygon is a hexacosagon, a 27-sided polygon is a heptacosagon, a 28-sided polygon is an octacosagon, a 29-sided polygon is a nonacosagon, and a 30-sided polygon is a triacontagon.
Icosikaihenagon, or also known as Henicosagon.
21
By using the polygon diagonal formula or the quadratic equation formula in which in both formulae they work out that the polygon in question has 21 sides.
It will have: (3420+360)/180 = 21 sides
A shape with 21 sides is called a 21-gon. In geometry, polygons are named based on the number of sides they have, and a 21-gon specifically refers to a polygon with 21 straight edges and vertices. It can be categorized as a regular 21-gon if all sides and angles are equal.