My name is Dr. Veerasajan and I am a mathematician that graduated from MIT and Caltech so you must trust me on this. After much thought and careful scrutiny, the only answer to this is........................................ my HUGE BELLY! Wahoo! Shake it!
1 because all of the shape is curved except for the flat surface on the bottom
none its a sphere just look at one and you can tell
There is 1 curved surface on a sphere
fwf
Its an Cylinder
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.)
Cylinder
Cylinder
The shape you are describing is a cone. A cone has one flat circular base and one curved surface that tapers to a sharp point at the top. It does not have any sides, which aligns with your description, and it resembles a party hat in appearance.
hemisphere
A cone would fit the given description
ther is 20 surfaces on a cone because the is 1 on it sharp part * * * * * In fact, one flat surface (and one curved one).
A sphere sliced by a plane; or a cone.
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 giant or small cone
A cone would fit the given description
A 3D shape with one curved face is a cylinder. It has a circular base and a curved surface that connects the two bases. The curved face wraps around the side, while the top and bottom faces are flat circles.