Before starting with the polygon formula, let us recall the definition of a polygon. A polygon is a closed 2-D figure which comprises three or more straight lines. A polygon should have at least three sides. Each side of the line segment must intersect with another line segment only at its endpoint. Based on the number of sides of a polygon, we can easily identify the polygon shape.Common examples of polygons are triangles, squares, pentagons, hexagons, etc.
Types of Polygon
Based on the angle measure and the sides of a polygon, the polygon is classified into:
Regular Polygon – All the interior angles and the sides are of the same measure
Irregular Polygon – All the interior angles and the sides have diferent values
Convex polygon – All the interior angles of a polygon are strictly less than 180 degrees
Concave Polygon – Polygons that have one or more interior angles with a measure of more than 180 degrees
Below is the listed polygons based on their number of sides.
Let us now understand the polygon formula using a few solved examples in the following section.
Breakdown tough concepts through simple visuals.
Math will no longer be a tough subject, especially when you understand the concepts through visualizations.