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A polyhedron is a 3-dimensional shape bounded by 4 or more plane faces. The prefices for the smaller numbers are pretty well known: tetrahedron (4), penta-, hexa-, etc. Beyond 10, the only common prefices are dodeca- (12) and icosa- (20). For most polyhedra with a large number of faces, the sensible and user friendly way is to refer to it as an n-hedron where n is the number of faces. However, some pretentious and user unfriendly people will insist on using unfamiliar prefices. You may find help deciphering these at
http://faculty.kutztown.edu/schaeffe/Tutorials/General/Polygons.html
What else can I help you with?
Some polyhedrons are both prisms and pyramids.?
Not true.
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.
Is an empty box a polyhedron. Do polyhedrons have to be solid?
Yes, an empty box is and No, polyhedrons don't have to be.
Are not polyhedrons check all that apply.?
Polyhedrons are defined as three-dimensional shapes with flat polygonal faces, straight edges, and vertices. Therefore, objects that do not meet these criteria, such as spheres, cylinders, and cones, are not considered polyhedrons. Additionally, shapes with curved surfaces or those that are not fully enclosed do not qualify as polyhedrons.
Where Some polyhedrons are neither prisms nor pyramids True or false?
True. Some polyhedrons do not fit the definitions of prisms or pyramids. For example, a truncated tetrahedron is a polyhedron that has faces that are not all parallel and does not converge to a single point, which disqualifies it from being categorized as a prism or a pyramid.
Are polyhedrons symmetrical?
not all, but some
Some polyhedrons are both prisms and pyramids.?
Not true.
Are prisims polyhedrons or not polyhedrons?
A prism is a polyhedron.
Some polyhedrons are neither prisms nor pyramids?
true
Is it true some polyhedrons are both prisms and pyramids?
true
What are some polyhedrons with 10 edges?
I can just think of the pentagonal pyramid.
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.
Is an empty box a polyhedron. Do polyhedrons have to be solid?
Yes, an empty box is and No, polyhedrons don't have to be.
Cylinders and cones are just polyhedrons with circular bases?
False. Cylinders and cones are not just polyhedrons with circular bases.
Where Some polyhedrons are neither prisms nor pyramids True or false?
True. Some polyhedrons do not fit the definitions of prisms or pyramids. For example, a truncated tetrahedron is a polyhedron that has faces that are not all parallel and does not converge to a single point, which disqualifies it from being categorized as a prism or a pyramid.
Why aren't cylinder cones and spheres polyhedrons?
polyhedrons need flat face and edges, corners which cylinder cones don't have.
Do polyhedrons have right angles?
not all
