A closed plane figure which is bounded by straight sides.
A hexagon is a 6 sided polygon
THE POLYGON LAW states that if (n-1) similar vectors acting at a point in a plane can be represented both in magnitude and direction by the (n-1) consecutive sides of a n-sided polygon then the n-th side will represent the resultant vector in the reverse order.
A 122-sided polygon is called a "hectaicosagon." The naming convention for polygons is based on Greek numerical prefixes combined with the suffix "-gon" for polygon. In this case, "hecta" represents 100, and "icosi" represents 20, making a total of 120 sides, with the additional two sides represented by the suffix "-gon."
I believe that the only polyhedron or polygon that own all of these features to be a sphere
it seems to me that the only polygon of your description is a square
A hexagon is a 6 sided polygon
" If a number of forces acting at a point be represented in magnitude ad direction by the sides of a polygon in order, then the resultant of all these forces may be represented in magnitude and direction by the closing side of the polygon taken in opposite order "
a square
Three forces in equilibrium can be represented in magnitude and direction by the three sides of a triangle taken in order. If a number of forces acting simultaneously on a particle be represented in magnitude and direction by the sides of a polygon taken in order, their resultant may be represented in magnitude and direction by the closing side of the polygon taken in opposite order.
a polygon must be a closed shape and has all straight lines
No it is not a polygon, simply because it is a 3D shape. Yes it has all the other features but it is a 2D shape which is not one of a polygon's features.
All the concurrent forces acting at a point can be represented by a polygon's sides closing with the resultant force equal in magnitude and opposite in direction.
Its shaft would have to be wide enough so as not to be represented by a single line. All lines would have to be straight.
To construct the name of a polygon over 20 sides, combine the prefix with the connector "kai", indicating tens of sides, and the suffix with another connector, "gon". In this instance, since 50 is represented by "pentaconta", and 6 is represented by "hex", a 56-sided polygon would be called a "pentacontakaihexagon".
A topographical map
if several COPLANAR FORCES are acting at a point simultaneously such that each one of them can be represented in direction and magnitude by a side of a polygon, taken in order, then the resultant is given by the closing side in the reverse order
THE POLYGON LAW states that if (n-1) similar vectors acting at a point in a plane can be represented both in magnitude and direction by the (n-1) consecutive sides of a n-sided polygon then the n-th side will represent the resultant vector in the reverse order.