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In geometry, a Platonic solid is a convex, regular polyhedron in three-dimensional Euclidean space. Being a regular polyhedron means that the faces are congruent (identical in shape and size) regular polygons (all angles congruent and all edges congruent), and the same number of faces meet at each vertex.
- 概念
- 形态
符合以上3点的立体结构就被称为“柏拉图立体”（或“规则立体”）。
2024年10月4日 · Platonic solid, any of the five geometric solids whose faces are all identical, regular polygons meeting at the same three-dimensional angles. Also known as the five regular polyhedra, they consist of the tetrahedron (or pyramid), cube , octahedron, dodecahedron, and icosahedron.
Platonic solids, also known as regular solids or regular polyhedra, are solids with equivalent faces composed of congruent convex regular polygons. Platonic solids were studied by the ancient greek who also call these solids cosmic solids and are of 5 types.
象徵意義. [編輯] 克卜勒 在《宇宙的奧秘》 (1596)中給太陽系的柏拉圖立體模型。 柏拉圖視「四古典元素」為 元素，其形狀如正多面體中的其中四個。
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柏拉图立体 在几何学中，凸正多面体（Regular Polyhedra），又称为柏拉图立体（Platonic Solids），是一种非常规则的三维立体结构，其具有以下特征： 每一个面都是全等的正多边形每个顶点都是相同数目的正多边…
5 天前 · The Platonic solids, also called the regular solids or regular polyhedra, are convex polyhedra with equivalent faces composed of congruent convex regular polygons.
