The only possible answer is a cone, because they don't have any other flate sufaces.
This figure is a CONE.
A cone
A hemisphere is one example.
no, it's a pyramid
# Square Pyramid # Rectangular Pyramid # Triangular Pyramid
This figure is a CONE.
A cone
A spitial figure with a circular bases no edges and one vertex
How about a cone or a pyramid
How about a hemisphere ?
Because the base of a cone is round, it is the only three dimensional figure with only one vertex.
A hemisphere is one example.
pyramid or cone
a pyramid yeah
How about a cone or maybe a pyramid
no, it's a pyramid
A 3D shape with one base and three faces can only have triangular faces.