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Rectilinear Figures

  • Polygons
    • A simple closed curve made up of line segments only is called a polygon.
    • Polygons can be classified according to their number of sides (or vertices).

 

Number of side/vertices

Classification

3

Triangle

4

Quadrilateral

5

Pentagon

6

Hexagon

7

Heptagon

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n

n – gon

 

 

  • The line segment connecting two non-consecutive vertices of a polygon are called diagonals.

                        

 

For polygon ABCD, AC and BD are diagonals and for polygon PQRS, QS and PR are diagonals.

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