2
cylinder
2 flat and 1 curved
Flat surfaces: 6Curved surfaces: 0.
2 flat surfaces unless it is rolled up in which case it has 2 curved surfaces.
distorted....
5
Yes, a cylinder has both curved and flat surface. Considering a solid cylinder standing on its end, the circular base and the circular top are flat surfaces. The surface connecting the top and bottom is curved.
Circles, squares, rectangles, and triangles are solids that have a flat surface.
Spheres
Three-dimensional figures with a curved surface are not considered polyhedrons because polyhedrons are defined as solids with flat polygonal faces, straight edges, and vertices. Curved surfaces lack these flat faces and straight edges, which are essential characteristics of polyhedrons. Examples of shapes with curved surfaces include spheres and cylinders, which do not fit the definition of a polyhedron. Thus, the presence of curved surfaces distinguishes these figures from polyhedra.
A cuboid has 6 flat faces but no curved surfaces. ..________ ./............../| /_______/.| |..............|.| |..............|./ |_______|/
A prism has no curved surfaces. It has 5 or more flat faces.