a cylinder
There is no particular name.
sphere
A cylinder, depending if you think the curved part that goes around counts..
None.The closest would be a pentagonal prism which has 15edges, 10 vertices and 7 faces.Euler's characteristics for prisms show that V - E + F must equal 2.
triangular prism
A cylinder.
Yes; A Cylinder.
A cylinder has 2 parallel circular edges
# of faces + # of edges + # of vertecies + 2
They are called a Vertices and it is where 2 edges meet.
a cylinder
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.
There is no particular name.
perpendicular
sphere
i would say a cube