A triangle is the simplest polygon with three vertices and 3 sides. A dodecahedron has 12 vertices and 12 sides. There is no limit to the number of vertices and sides that a polygon can have - except that the two numbers must be the same.
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The common endpoint of two sides of a polygon is called the vertex. Polygons have different numbers of vertices depending on the particular shape of the polygon. For example, a pentagon will have five vertices, and a rectangle will have 4 vertices.
Square and rectangle both have four vertices and four sides.
A true statement about polygons is that they are closed geometric figures made up of line segments connected end-to-end. Polygons have a specific number of sides, vertices (corners), and angles. The sum of the interior angles of a polygon can be calculated using the formula (n-2) * 180 degrees, where n is the number of sides. Additionally, polygons can be classified based on the number of sides they have, such as triangles (3 sides), quadrilaterals (4 sides), pentagons (5 sides), and so on.
Yes, regular polygons will have all sides equal length, and all angles the same. If two polygons of the same number of sides are 'regular' then those two polygons will be similar (they may be scaled, for example).
A trapezium is a quadrilateral and so has four sides and four vertices.