a cone
The edge is a line - straight or curved - where two faces of the solid meet.
An edge of a 3 dimensional figure
False. A solid figure that cannot roll does not necessarily have faces. The ability to roll is determined by the shape and symmetry of the figure, not by the presence of faces. For example, a sphere is a solid figure that cannot roll, but it does not have faces.
cylinder
A cone?
A force acting on it.
Edge. (:
an edge.
an edge
A face.
Freeze it solid, then stand it on edge and push.
edge.