Polygons are 2D closed shapes having straight sides. Although the smallest number of sides a polygon can have is 3; we will look at a polygons having 5 sides and more. Polygons can be of 2 types. Regular and Irregular.

Sum of all internal Angles = (n – 2) x 180

where n = number of sides of the polygon

Exterior Angle = 360/n

Interior Angle = 180 – Exterior Angle

Polygons are 2D closed shapes having straight sides. Although the smallest number of sides a polygon can have is 3; we will look at a polygons having 5 sides and more. Polygons can be of 2 types. Regular and Irregular.

1. Sum of Interior Angles in a PolygonSum of all internal Angles =

(n – 2) x 180where n = number of sides of the polygon2. Exterior Angle of a PolygonExterior Angle =

360/nwhere n = number of sides of the polygon3. Interior Angle of a PolyonInterior Angle = 180 – Exterior Angle## Nouri Dib