A figure that has a curved face or curved edge.
Yes.
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.
It's not true. As with all solid figures, polyhedra have volume and surface area.
No. Polyhedrons are any shape with multiple sides. A triangle and a prism are just two different kinds of polyhedrons.
Yes, an empty box is and No, polyhedrons don't have to be.
this shape has the num 5
Yes.
It's not true. As with all solid figures, polyhedra have volume and surface area.
A sphere.
A prism is a polyhedron.
A sphere has no faces an corners. The term "faces" and "corners" are applied to polyhedrons, figures with flat surfaces.
No. Polyhedrons are any shape with multiple sides. A triangle and a prism are just two different kinds of polyhedrons.
Well, darling, those solid figures with more than six faces are called polyhedrons. They're like the cool kids of geometry, strutting around with their multiple faces and edges. So next time you see one, just remember they're not just any old shape - they're polyhedrons, honey.
Yes, an empty box is and No, polyhedrons don't have to be.
False. Cylinders and cones are not just polyhedrons with circular bases.
In general: figures, polygons, polyhedrons, shape, irregular, regular... Other examples: circle, triangle, square, quadrilateral, rectangle, rhombus, parallelogram, trapezoid, hexagon, heptagon, octogon... 13-gon -- seriously, 15-gon, centagon... it goes on...
polyhedrons need flat face and edges, corners which cylinder cones don't have.