Different Types of Polygons
The different types of polygons are discussed here.
In
any polygon a pair of sides that are inclined to each other meet at a
point. This point is called a vertex of the polygon. In the polygon
there are as many vertices as there are sides.
Definition of Polygon:
A polygon is a plane figure that is made by joining the line segments where each line segment meets exactly two other line segments.
The intersection point of two line segments is called the vertex of the polygon.
Polygons are classified according to their number of sides.
Polygon  Triangle:
The triangle has 3 sides and 3 vertices.
Triangle
Polygon  Quadrilateral:
The quadrilateral has 4 sides and 4 vertices.
Quadrilateral
Polygon  Pentagon:
The pentagon has 5 sides and 5 vertices.
Pentagon
Polygon  Hexagon:
The hexagon has 6 sides and 6 vertices.
Hexagon
Different Types of Polygons:
Name

Number of Sides

Figures

Triangle

3


Quadrilateral

4


Pentagon

5


Hexagon

6


Heptagon

7


Octagon

8


Nonagon

9


Decagon

10


Questions and Answers on Polygons:
1. Classify the following polygons according to the number of sides:
Solution:
(i) Pentagon
(iii) Quadrilateral
(ii) Nonagon
(iv) Hexagon
2. In the adjacent figure, the polygon according to sides is __________. (i) hexagon (ii) octagon
(iii) heptagon (iv) nonagon
Solution: Here the no. of sides in the polygon = 8. Hence, it will be an octagon.


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