A cone?
a cone
A cone. It has a circle for the base, and a curved face tapering to a point.
hemisphere
A sphere sliced by a plane; or a cone.
cylinder circle
a cone
cylinder??nope
Faces-2 (1 flat face and 1 curved face), 1 curved edge, and 1 vertex.
A cone. It has a circle for the base, and a curved face tapering to a point.
A cone would fit the given description
A cone would fit the given description
perabale
sphere
Don't know. It cannot be a cone since that has two faces: one curved (curvered?) face and one flat (circular) face. Alternatively, an infinite cone has only one curved face but then it has no edge.
hemisphere
A sphere sliced by a plane; or a cone.
its a lens...1 curved edge = a circle, 1 flat surface = back, 1 curved surface = front. (these are used in some battery-less flashlights, as an example.)