square
A square is not a solid figure at all. It's a flat figure, with four congruent faces and four congruent angles.
No. All the faces of a Platonic solid are identical regular polygons.
A cube is a solid figure with eight vertices and all faces of equal size.
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 pentagonal prism
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cuboid
a square
A platonic solid is a special kind of polyhedron. A polyhedron is a 3-D figure whose faces are polygons.In a platonic solid all faces are identical regular polygons. A polyhedron has faces, edges, and vertices. The numbers of each are related by Euler's formula, V+F=E+2
A pyramid
A rectangular prism.
surface area