Polygons

• The word polygon is a Greek word. Poly means many and gon means angles.
• Parts of a Polygon:

  1. Side
  2. Vertex
  3. Interior Angle
  4. Exterior Angle
  5. Diagonal
• Side: One of the line segments that make up a polygon.
• Vertex: A point where two sides meet.
• Interior Angle: An angle formed by two adjacent sides inside the polygon.
• Exterior Angle: An angle formed by two adjacent sides outside the polygon.
• Types of Polygon:

  1. Regular Polygon
  2. Equiangular Polygon
  3. Equilateral Polygon
  4. Convex Polygon
  5. Concave Polygon
• Equiangular Polygon: A polygon in which all angles are equal.
• Regular Polygon: A polygon where all the angles are equal and all of the sides are the same length. They are both equiangular and equilateral.
• Equilateral Polygon: A polygon in which all sides are the same length.
• Convex Polygon: A polygon whose each of the interior angles measures less than 180°.
• Concave Polygon: A polygon that has at least one or more than one interior angle that measures greater than 180°.