Cone has 1 flat Face (the base) which is acircle. 1 curved Face ,1 Vertex , 1 Edge.. Cylinder has 2flat Faces (top and bottom) both are circles .1 curved Face , 2Edges ,No Vertices..
Subsequently, question is, what is an edge on a 3d shape? A face is a 2D shape that makes up one surface ofa 3D shape, an edge is where two faces meet and avertex is the point or corner of a geometricshape.
Considering this, how many edges does a cylinder have in 3d?
2 edges
How many edges does a cube have?
12