For example, observe one side of your room or that of a Rubik’s cube. In other words, a face refers to any single flat surface of a 3D shape. Polyhedron – A solid shape bounded by polygons is called a polyhedron.įaces – Polygons forming a polyhedron are known as its faces. For example, the laptop, our rooms, mobile phones, ice cream, tennis balls etc. In our everyday lives, we come across many solid shapes. For example, square and rectangle are examples of 2 D shapes.ģ Dimensional shapes – 3 Dimensional shapes or 3D shapes are the shapes that have all the three dimensions, i.e. These terms are –Ģ Dimensional shapes – 2 Dimensional shapes or 2D shapes are the shapes that have two dimensions, i.e. There are some other terns as well that are important to recall for further understanding of the vertex. the plural of the word “ vertex is “ vertices ”.
For example, in the below figure, ABCD, the vertices are A, B, C and D.
In other words, the meeting point of a pair of sides of a polygon is called its vertex.
Points of intersection of edges of a polyhedron are known as its vertices. Let us learn about the vertex, what it means and how it is relevant in different shapes. However, still, there are some terms, such as vertices and edges that find a place in the discussion of all shapes. This means that not every term that is used to discuss and understand shapes might be relevant to all the shapes. There are different parts of shapes that hold significance for their understanding, such as the length and breadth of a 2 – dimensional shape or a length, breadth and height of a 3 – dimensional shape. The Sun, the earth and other planets, the mountains and all other things in the world are all of the specific shapes. The alphabets of English shapes are all shapes of different types. We come across many shapes in our daily lives and kids start recognising these shapes even before actually studying about them. We know that the boundary or outline of an object is called its shape. Shapes hold an important place in different concepts in mathematics.
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