Mathematics

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Mathematics
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Polygons - Part 1
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Definition of polygon
An enclosed figure on a plane bounded by three or more straight sides
Formula of the number of diagonals of a polygon having n sides

Triangle
Number of sides = 3

Quadrilateral
Number of sides = 4

Pentagon
Number of sides = 5

Hexagon
Number of sides = 6

Heptagon
Number of sides = 7

Octagon
Number of sides = 8

Nonagon
Number of sides = 9
Definition of diagonal
A straight line joining any two vertices which are not adjacent to each other
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Polygons - Part 1
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