Saturday, August 21, 2010

irregular polygon

I have come up with a grade 4 math topic called the polygon. First lets learn the definition of a polygon and then lets learn what are regular and irregular polygon as well.

Definition of polygon:- Its a closed geometrical figure with three or more straight lines that meet in pairs in same vertices. The sum of all the interior angles is 180 degree and the sum of the exterior angles are 360 degree.

Now lets go ahead with the definition of the two different types of polygon.

Definition for regular polygon:
A regular polygon is defined by the angles and the sides are equal

Definition for irregular polygon:
A irregular polygon is defined as the angles and the sides are not equal and it’s the opposite of the regular polygon’s.

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