All regular polygons.
No. All the faces of a Platonic solid are identical regular polygons.
A pentagonal prism
Only A (It is a closed figure) is true. The rest are incorrect because they define specific regular polygons. If you consider B (It is a quadrilateral), you must follow the logic that all quadrilaterals are polygons but not all polygons are quadrilaterals (an easier-to-follow example of this logic is: All fathers are male, but not all males are fathers).
A cube is a solid figure called a polyhedron. A polyhedron is a solid figure with all flat faces. So a cone would be a solid figure but not a polyhedron becasue it has a curve and does not have all flat faces.
A __________ is a space figure in which all faces are polygons.
It is a polyhedron which means many faces
Many 3-d figures can have polygons for bases. If all ist faces are polygons then it is a polyhedron but it is possible to have 3-d figures with a polygonal base and non-polygonal faces.
that would be a prism
The surface area of a space figure is the total area of all the faces of the figure
A polyhedron is closed a 3-dimensional figure whose faces are all polygons. The prefix "octa-" refers to eight and an octahedron is a polyhedron with 8 faces.
A cube.
a polyhedron
It is a prism. More specifically, "A solid figure that has two bases that are parallel, congruent polygons and with all other faces that are parallelograms." This describes the general prism. Replace "polygons" with "triangles" and you have specified a triangular prism.
It is a crystal, all of whose faces are polygons.
No only quadrilateral polygons have 4 sides
All regular polygons.