False. Cylinders and cones are not just polyhedrons with circular bases.
not all, but some
Cylinders and cones are not considered polyhedrons because they do not have flat faces, which is a defining characteristic of polyhedrons. Polyhedrons are three-dimensional shapes made up of flat surfaces, while cylinders and cones have curved surfaces. Additionally, polyhedrons have straight edges where faces meet, whereas cylinders and cones have curved edges. Therefore, cylinders and cones are classified as curved surfaces rather than polyhedrons.
Polygons ( means many sides). They are called solids or polyhedrons; they exist in three dimensions and not two.
true
triangular prism and a pyramid
hexagon, square
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No. Polyhedrons are any shape with multiple sides. A triangle and a prism are just two different kinds of polyhedrons.
Polyhedrons such as pyramids and cuboids
cube and cuboid
A prism is a polyhedron.
Yes, an empty box is and No, polyhedrons don't have to be.
Two polyhedrons have 18 edges: truncated tetrahedron and hexagonal prism.
False. Cylinders and cones are not just polyhedrons with circular bases.
polyhedrons need flat face and edges, corners which cylinder cones don't have.
not all, but some