Describe the different type of polygons

Convex Polygons



All of its angles are less than 180°.

All of the diagonals are internal.

Concave Polygons


 At least one angle measures more than 180°.
 At least one of the diagonals is outside the shape of the polygon.

 

Equilateral Polygons


All sides are equal.

 

Equiangular Polygons


All angles are equal.

 

Regular Polygons


They have equal angles and sides

 

Irregular Polygons

They do not have equal angles and sides.

Types of Polygons based on Number of Sides

Triangle


3 sides.

 

Quadrilateral


4 sides.

 

Pentagon


5 sides.

 

Hexagon


6 sides.

 

Heptagon


7 sides.

 

Octagon


8 sides.

 

Enneagon or Nonagon


9 sides.

 

Decagon


10 sides.

 

Hendecagon


11 sides.

 

Dodecagon


12 sides.

 

Tridecagon or triskaidecagon


13 sides.

 

Tetradecagon or tetrakaidecago


14 sides.

 

Pendedecagon


15 sides.

 

Hexdecagon


16 sides.

 

Heptdecagon


17 sides.

 

Octdecagon


18 sides.

 

Enneadecagon


19 sides.

 

Icosagon


20 sides.

 

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