Faces, Edges and Vertices Faces A face of a 3D shape is the two-dimensional border of the shape. It is the collection of all the points on the surface t...
Faces, Edges and Vertices
Faces
A face of a 3D shape is the two-dimensional border of the shape. It is the collection of all the points on the surface that are directly adjacent to a particular point. For example, the front face of a cube is the collection of all the points on the surface that are directly above that point.
Edges
An edge is a line segment that connects two vertices of a 3D shape. An edge is a part of the shape's boundary. For example, the edges of a cube are the lines that connect the vertices.
Vertices
A vertex is a point where two or more edges intersect. A vertex is the central point of a shape. For example, the vertices of a cube are the points where the edges meet.
Examples
A cube has 6 faces, 12 edges, and 8 vertices.
A sphere has 2 faces, 8 edges, and 4 vertices.
A cylinder has 2 faces, 4 edges, and 2 vertices