10/13/2023 0 Comments Square triangular prism![]() Vertices – Points of intersection of edges of a polyhedron are known as its vertices. It is similar to the sides we have in 2D shapes. In other words, a face refers to any single flat surface of a 3D shape.Įdges – Line segments common to intersecting faces of a polyhedron are known as its edges.In other words, n edge is a line segment on the boundary joining one vertex (corner point) to another. If the line segment joining any two points on the surface of a polyhedron entirely lies inside or out the polyhedron then it is called a convex polyhedron.įaces – Polygons forming a polyhedron are known as its faces. The word polyhedra are the plural of the word polyhedron. Polyhedron – A solid shape bounded by polygons is called a polyhedron. So, here we have to define the 3D shapes are: But, before we look at the different solid shapes, we need to understand some common terms that are used to define different dimensions of solid shapes. Let us understand some of these shapes in detail. For example, the laptop, our rooms, mobile phones, ice cream, tennis balls etc. In our everyday lives, we come across many solid shapes. 3D Shapesģ Dimensional shapes or 3D shapes are the shapes that have all the three dimensions, i.e. Why do we call them 3-dimensional? To understand this, we first need to understand what we mean by the word 3-dimensional shapes. These solid shapes are known as 3-dimensional shapes.
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