Faces, Edges and Vertices – Properties of 3D Shapes:
- Square Pyramid
- Triangular Prism
- Triangular Pyramid
Faces, Edges and Vertices
Face is a flat surface that forms part of the boundary of a solid object.
A vertex is a corner.
An edge is a line segment joining two vertex.
Faces, Edges and Vertices – Cuboid
A cuboid has six rectangular faces.
A cuboid has 8 vertices.
A cuboid has 12 edges.
A cube has six square faces.
A cube has eight vertices.
A cube has 12 edges.
A cone has one plane surface (i.e base) and one curved lateral surface.
A cone has 1 vertex.
A cone has 1 circular edge.
Faces, Edges and Vertices – Cylinder
A cylinder has a curved lateral surface and two circular faces at its ends.
A cylinder has no corner or vertex.
A cylinder has 2 circular edges.
A sphere has a curved surface.
A sphere has no vertex.
A sphere has no edges.
A square pyramid has 4 lateral triangular faces and 1 square base.
A square pyramid has 5 vertices.
A square pyramid 8 edges.
A triangular prism has 3 rectangular lateral faces and 2 triangular bases.
A triangular prism has 6 vertices.
A triangular prism has 9 edges.
Faces, Edges and Vertices – Triangular Pyramid
A triangular pyramid has 3 triangular lateral faces, 1 triangular base.
A triangular pyramid has 4 vertices.
A triangular pyramid has 6 edges.