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Q: Name a polygon that has less than 4 vertices?

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A regular pentagon is convex. By taking a regular pentagon and shortening or lengthening one or more sides, an infinite number of possible convex pentagons can be created. A convex polygon is defined as a polygon such that all internal angles are less than or equal to 180 degrees, and a line segment drawn between any two vertices remains inside the polygon. It is possible to have non-convex (concave) pentagons; there are infinite number possible ways to do this, too.

No. Since the graph is simple, none of the vertices connect to themselves - that is, there are no arcs that loop back on themselves. Then the two vertices with degree 6 must connect to all the other vertices. Therefore there can be no vertex with less than two arcs [ to these two vertices]. So a vertex with degree 1 cannot be part of the graph.

No polygon can have less than 3 angles. It would be a triangle with 3 sides but that has 3 angles.

zero. 0

A convex polygon is one with no angle greater than 180 degrees. A non-convex polygon is one that is not without such an angle.

Related questions

A triangle has three vertices.

Every polygon that is not a triabgle (3 vertices), quadrilateral (4 vertices) or pentagon (5 vertices) has more than 5 vertices.

no

9 (two less than the number of vertices in the polygon).

None.A polygon is made up of straight line edges between its vertices. There are the same number of edges as vertices in a polygon.In the case of a polygon, it is convex if all interior angles are less than 180o.

10 ... any polygon it is 2 less than the number of sides or vertices wince they are the same.

square

It is a sphere, a cylinder and a cone that have less than 3 vertices!

A polygon has the same number of vertices as it has sides. So a pentagon has 5 and an octagon has 8, etc.

A convex polygon is defined as a polygon with all its interior angles less than 180°. This means that all the vertices of the polygon will point outwards, away from the interior of the shape. Think of it as a 'bulging' polygon. A triangle (3-gon) is always convex.

Polygons of 6 or more sides have more than 5 vertices such as an octagon which has 8 vertices

Any regular polygon with more than 4 sides with have all its corners (vertices) equal. Furthermore, an irregrular polygon with more than four sides can always have four equal vertices.

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