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The convex hull of a simple polygon is divided by the polygon into pieces, one of which is the polygon itself and the rest are pockets bounded by a piece of the polygon boundary and a single hull edge. Although many algorithms have been published for the problem of constructing the convex hull of a simple polygon, nearly half of them are incorrect.
รูปหลายเหลี่ยมนูน ( อังกฤษ: convex polygon) คือ รูปหลายเหลี่ยมเชิงเดียว ที่มีเนื้อที่ภายในเป็น เซตนูน (convex set) [1] สมบัติต่อไปนี้ของรูปหลาย ...
Aug 3, 2023 · A convex polygon is a polygon that has all its interior angles less than 180°. All the diagonals of a convex polygon lie inside the closed figure. A convex polygon can be both regular and irregular. Regular convex polygons have all sides of the same length and all interior angles of the same measure (less than 180°).
Technically, what's true is that those vertex types cannot appear in any edge-to-edge tiling of regular polygons, so I added the phrase "edge-to-edge" at the beginning of that section, since all of these statements apply only in that case. This result can be found in my Ph.D. thesis, but was known long before then.
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Regular 4-polytope. In mathematics, a regular 4-polytope or regular polychoron is a regular four-dimensional polytope. They are the four-dimensional analogues of the regular polyhedra in three dimensions and the regular polygons in two dimensions. There are six convex and ten star regular 4-polytopes, giving a total of sixteen.
Skew polygon. The red edges of this tetragonal disphenoid represent a regular zig-zag skew quadrilateral. In geometry, a skew polygon is a polygon whose vertices are not all coplanar. [1] Skew polygons must have at least four vertices. The interior surface (or area) of such a polygon is not uniquely defined.
