Visualize a square-based pyramid. There are four edges on the base and four more combined edges from the four triangles that make the sides. An octahedron has an upside-down pyramid pasted to the bottom. Since you've already counted the base, there's just four more edges from the combined four extra triangles, making a total of 12.
An octahedron has8 faces, 12 to 18 edges and 6 to 12 edges.
An octahedron has 12 edges.
An octahedron has 8 faces, 12 edges, and 6 corners.
An octahedron has eight faces. If it has 62 faces then it is not an octahedron!
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. An octahedron can have 12 to 18 edges.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. An octahedron can have 12 to 18 edges.
12
8
yeah
Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.Any figure with 8 faces is an octahedron. If it has 18 edges, it is a hexagonal prism.
its has parallel faces and edges
Not necessarily.