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11 Undecagon, Hendecagon

12 Dodecagon

13 Tridecagon, Triskaidecagon

14 Tetradecagon, Tetrakaidecagon

15 Pentadecagon, Pentakaidecagon

16 Hexadecagon, Hexakaidecagon

17 Heptadecagon, Heptakaidecagon

18 Octadecagon, Octakaidecagon

19 Enneadecagon, Enneakaidecagon

20 Icosagon

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Q: Names of polygons with 11 sided to 20 sides?

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3 sides: triangle 4 sides: quadrilateral 5 sides:pentagon 6 sides:hexagon 7 sides: heptagom 8 sides: octagon 9 sides: nonagon 10 sides: decagon 11 sides: unodecagon ? 12 sides: duodecagon 13 sides: trisca-decagon? 14 sides: ( I am tired on making up names- try quator-decagon, or look it up.)

Endecagon or hendecagon.An undecagon has 11 sides

An hendecagon is an 11 sided polygon

Hendecagon has 11 sides,dodecagon has 12 sides,triskaidecagon has 13 sides,tetradecagon has 14 sides,pentadecagon has 15 sides,hexadecagon has 16 sides,17 sides is heptadecagon,octadecagon have 18 sides,enneadecagon has 19 sides,20 sides is called as icosagon. The prefix of that 9 polygons is Greek. A polygone with 4 sides is called a quadrilateral.

All polygons, including an undecagon (11-sided figure) have a sum of exterior angles of 360 degrees.

Related questions

The first ten polygons in order of names and sides are as follows:- Triangle has 3 sides Quadrilateral has 4 sides Pentagon has 5 sides Hexagon has 6 sides Heptagon has 7 sides Octagon has 8 sides Nonagon has 9 sides Decagon has 10 sides Undecagon has 11 sides Dodecagon has 12 sides

Look around you. How many 11-sided polygons do you see?

But it is because an 11 sided polgon is called an undecagon

hendecagon

3 sides: triangle 4 sides: quadrilateral 5 sides:pentagon 6 sides:hexagon 7 sides: heptagom 8 sides: octagon 9 sides: nonagon 10 sides: decagon 11 sides: unodecagon ? 12 sides: duodecagon 13 sides: trisca-decagon? 14 sides: ( I am tired on making up names- try quator-decagon, or look it up.)

A polygon has 3 or more sides and some of the better known of them with names and sides are as follows:- Triangle has 3 sides Quadrilateral has 4 sides Pentagon has 5 sides Hexagon has 6 sides Heptagon has 7 sides Octagon has 8 sides Nonagon has 9 sides Decagon has 10 sides Undecagon has 11 sides Dodecagon has 12 sides The list can go on and on but its perfectly acceptable to call as for example a 30 sided polygon a 30-agon.

Number of triangles in a polygon is determined by (n-2) = number of triangles, whereas n is the number of sides of the polygon

The name of a 11 sided polygon is Hendecagon.

a hendecagon has 11 sides =)

There are several different kinds of polygons based on the number of sides they have. Some common examples include triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), hexagons (6 sides), and octagons (8 sides), among others. The name of the polygon usually indicates the number of sides it has.

Endecagon or hendecagon.An undecagon has 11 sides

An 11 sided polygon is a hendecagon and a 12 sided polygon is a dodecagon