Spheres
sphere
5 edges, 5 verts, and faces are only on 3d shapes, for the most part, so any 2d shape has 1
8 edges and 5 faces
no. a 2d square has only 1 face but a 3d square (cube) has 6 faces.
There are infinitely many shapes that do.
A cube has 6 faces
Spheres
sphere
5 edges, 5 verts, and faces are only on 3d shapes, for the most part, so any 2d shape has 1
A cylinder and a cone - are two entirely different 3D shapes. A cylinder has three faces & two edges. A cone has two faces and one edge.
6 faces, 12 edges
8 edges and 5 faces
There is no 3d shape made up of octagons. An octahedron can be one of several different shapes - but without ANY octagonal faces. For example, A hexagonal pyramid (8 faces, 18 edges, 12 vertices) A heptagonal pyramid (8 faces, 14 edges, 8 vertices) A quadrilateral dipyramid (8 faces, 12 edges, 6 vertices)
no. a 2d square has only 1 face but a 3d square (cube) has 6 faces.
According to Euler none; for all 3d shapes: Vertices + Faces = Edges + 2 ⇒ 12 + 8 = 19 + 2 ⇒ 20 = 21 So unless 20 does equal 21, no 3d shape has 8 faces, 19 edges and 12 vertices. Any 3d shape with 8 faces would be an octahedron.
A cube and a regular octahedron have the same number of edges, vertices, and faces. Both have 12 edges, 8 vertices, and 6 faces.