semi circle
a circle ??
A cone perhaps?
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.)
A shape with 1 vertex, 1 edge, 1 flat face, and 1 curved face is a cone. The vertex is the tip of the cone, the edge is the circular base where the flat face meets the curved surface, and the flat face is the circular base itself. The curved face extends from the base to the vertex.
A cone would fit the given description
a circle ??
A cone perhaps?
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.)
A shape with 1 vertex, 1 edge, 1 flat face, and 1 curved face is a cone. The vertex is the tip of the cone, the edge is the circular base where the flat face meets the curved surface, and the flat face is the circular base itself. The curved face extends from the base to the vertex.
cylinder??nope
a cone
a sphere
A cone would fit the given description
A cone would fit the given description
A semicircle is one shape fitting this description.
A circle perhaps or maybe a cone
It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.