# What are the names of polygon from 1 to 20?

## What are the names of polygon from 1 to 20?

Terms in this set (18)

• Three. Trigon or Triangle.
• Five. Pentagon.
• Six. Hexagon.
• Seven. Heptagon.
• Eight. Octagon.
• Nine. Nonagon or Enneagon.
• Ten. Decagon.

## What is the name of polygons 1 100?

Polygon Shapes 1-100 with Sides and Pictures

Name of Polygon Number of Sides
Hexagon Six – 6
Heptagon Seven – 7
Octagon Eight – 8
Nonagon/enneagon Nine – 9

What are the 11 polygons?

List of n-gons by Greek numerical prefixes

Sides Names
8 octagon
9 enneagon nonagon
10 decagon
11 hendecagon

### What is the name of 20 polygon?

icosagon

Side Name
17 heptakaidecagon
18 octakaidecagon
19 enneakaidecagon
20 icosagon

### What are the names of the 12 polygons?

Polygons: How Many Sides?

3 triangle, trigon
10 decagon
11 hendecagon
12 dodecagon, duodecagon
13 triskaidecagon, tridecagon

What is a 12 sided polygon?

A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.

#### What is a polygon with 99 sides called?

What is a 99 sided shape called? In geometry, an enneacontagon or enenecontagon or 90-gon is a ninety-sided polygon. Thus, the 99 sided shape is called nonacontakainonagon or enneacontanonagon. Here, enneaconta is the prefix for the number of sides numbered from 90 to 99.

#### What is the name of a 11 and 12 sided polygon?

∴ 11 sided and 12 sided polygons are called Hendecagon and Dodecagon respectively.

What’s a 12 sided polygon?

dodecagon
A dodecagon is a 12-sided polygon. Several special types of dodecagons are illustrated above. In particular, a dodecagon with vertices equally spaced around a circle and with all sides the same length is a regular polygon known as a regular dodecagon.

## What are the names of these polygons?

Types of Polygons

• 3 sides – Triangle.
• 5 sides – Pentagon.
• 6 sides – Hexagon.
• 7 sides – Heptagon.
• 8 sides – Octagon.
• 9 sides – Nonagon.
• 10 sides – Decagon.

## What is a polygon with 12 sides called?

What polygon has 13 sides?

Tridecagon
A 13-sided polygon, sometimes also called the triskaidecagon.

### What are all the polygons names?

– monogon (Monogon and digon can only. – digon be used in rather special. – trigon, triangle circumstances. Trigon and. – tetragon, quadrilateral tetragon are alternatives to. – pentagon triangle and quadrilateral; – hexagon the adjectival forms trigonal. – heptagon and tetragonal are more common.) – octagon.

### What are the names of regular polygons?

Regular and Irregular Polygons. Regular polygons have congruent sides and interior angles.

• Convex and Concave Polygons. A convex polygon closes in an interior area without looking “dented.” None of its interior angles point inward.
• Simple and Complex Polygons. Simple polygons have no self-intersecting sides.
• What are the names of a 11 sided polygon?

A Regular Polygon: it consists of congruent sides and interior angles.

• An Irregular Polygon: it does not have congruent sides and interior angles.
• A Convex Polygon: it contains no interior angle greater than 180° (it consists of no inward-pointing sides).
• A Concave Polygon: it contains one interior angle greater than 180°.
• #### What are the 12 polygons?

Equilateral triangle – Having all sides equal and angles of equal measure. It is also called an equiangular triangle.

• Isosceles triangle – Having any 2 sides equal and angles opposite to the equal sides are equal.
• Scalene triangle – Has all the 3 sides unequal.
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