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Three dimensional figures made of polygons are called polyhedrons?
Yes.
Why are three dimensional figures with a curved surface not polyhedrons?
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.
What are three-dimensional figures that are not polyhedrons?
A figure that has a curved face or curved edge.
Why polyhedrons have only area but not volume?
It's not true. As with all solid figures, polyhedra have volume and surface area.
All polygons are closed figures?
yes polygons are closed figures
What are open and closed figures?
For example, figures like C and N are open figures, and figures like O and D are closed.
Are quadrilaterals closed figures?
Yes quadrilaterals are 4 sided closed figures or polygons
Are prisims polyhedrons or not polyhedrons?
A prism is a polyhedron.
A sphere has how many faces and how many corners?
A sphere has no faces an corners. The term "faces" and "corners" are applied to polyhedrons, figures with flat surfaces.
Would you say city building tops were open figures or closed figures?
The buliding top of a city skyline is closed
What shapes are polyhedrons?
Polyhedrons are three-dimensional shapes with flat faces, straight edges, and sharp corners, known as vertices. Examples of polyhedrons include cubes, pyramids, prisms, and dodecahedrons. These shapes have a closed surface and are made up of polygons, which are two-dimensional shapes with straight sides.
All polyhedrons are prisms or pyramids.?
No. Polyhedrons are any shape with multiple sides. A triangle and a prism are just two different kinds of polyhedrons.
