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A polygon has at least three straight lines and three angles. How do you memorize the names of these polygons and how many sides does each shape have? Let’s go through the first ten polygons and some tricks for memorizing each plane shape.


Polygon Formulas (N = # of sides and S = length from center to a corner) Area of a regular polygon = (1/2) N sin(360°/N) S 2. Sum of the interior angles of a polygon = (N - 2) x 180°. The number of diagonals in a polygon = 1/2 N(N-3) The number of triangles (when you draw all the diagonals from one vertex) in a polygon = (N - 2). Polygon Parts


Learn about the shape properties used to identify the names of different regular and irregular polygons, such as triangles or hexagons. A polygon can be regular or irregular. A regular polygon has ...


Name of a polygon is termed according to the number of sides they have. Though polygon can have an infinite number of sides and can be termed according to the number of sides suppose a polygon consist. Suppose a polygon consist of 3 sides then it is known as a triangle, but if a polygon consists of 333 sides it will be known as 333-gon. ...


Polygons are usually defined by the number of sides that they have. Three-Sided Polygons: Triangles. A three-sided polygon is a triangle. There are several different types of triangle (see diagram), including: Equilateral – all the sides are equal lengths, and all the internal angles are 60°.


The Names of Polygon from One (1) to One Hundred (100) Polygons have endless names. Think how infinite a number is then that would be how infinite a polygon would be. Before we start to determine the various names of polygons from one to one hundred, let us start first with the basics through defining the following:


A geometrical figure with three or more sides is called a polygon or a polyhedron. Here are the names for some polygons.


Definition of a Polygon. A polygon is any 2-dimensional shape formed with straight lines. Triangles, quadrilaterals, pentagons, and hexagons are all examples of polygons. The name tells you how ...


An interactive math lesson about types of polygons based on number of sides.


Polygon. A quadrilateral is a polygon. In fact it is a 4-sided polygon, just like a triangle is a 3-sided polygon, a pentagon is a 5-sided polygon, and so on. Play with Them. Now that you know the different types, you can play with the Interactive Quadrilaterals. Other Names. A quadrilateral can sometimes be called: