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What is a Polygon? | Know Your Aptitude Class 6 To 8 - Class 8 PDF Download

What are polygons?

Polygons are two dimensional geometrical figures that are formed with line segments. Since there are more than 2 line segments, a polygon has a vertex, which is the point that is obtained at the junction of line segments. There is a line segment and vertex, which results in an angle.
What is a Polygon? | Know Your Aptitude Class 6 To 8 - Class 8

Polygon Rules

We will need a few formulas to solve the Polygon Questions to get solutions.
Lets recap few rules:

  1. The sum of all the interior angles of a simple n-gon = (n − 2) × 180° or Sum = (n − 2)π radians, Where ‘n’ is equal to the number of sides of a polygon. (This is called the Interior Angle sum property)
  2. The sum of interior and the corresponding exterior angles at each vertex of any polygon are supplementary to each other.

i,e For a polygon;
Interior angle + Exterior angle = 180 degrees
(This is called the Exterior angle property)

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