Sagara

 

 For a polygon with n sides is ( n-2)×180° The sum of exterior angles of any polygon is always 180° (One exterior angle at each vertex) At each vertex: Exterior angle + interior angle = 180° (They form a linear pair) https://youtube.com/shorts/Jg6BceQzjOQ?si=0F0xUFQQ30e3pQVj

  Regular Polygon – All sides and angles are equal. Example: Square, Equilateral Triangle. Irregular Polygon – Sides and angles are not equal

  Square – All sides equal, all angles 90°. Rectangle – Opposite sides equal, all angles 90°. Rhombus – All sides equal, opposite angles equal. Parallelogram – Opposite sides parallel and equal. Trapezium – One pair of parallel sides.

  Triangle – 3 sides Quadrilateral – 4 sides Pentagon – 5 sides Hexagon – 6 sides Heptagon – 7 sides Octagon – 8 sides Nonagon – 9 sides Decagon – 10 sides A polygon with n sides is called an n-gon . https://youtube.com/shorts/vxoRv4oIrvw?si=Wd16to-6xhcsDxKp

  A polygon is a flat, two-dimensional shape made of three or more straight line segments that connect to form a closed figure, with common examples including triangles, squares, and pentagons, named for their number of sides. Key features are straight sides (edges) and vertices (corners) where sides meet; curves, gaps, or open shapes are not polygons.