equilateral triangles and regular pentagons
A solid with a regular polygon for each face is known as a perfect solid.
A face
A decaredra is the ten face solid figure.
The sum of the areas of each face of the solid.
A triangle, square or pentagon.
A triangle, square or pentagon.
triangles and pentagons
A cubeoid is not a platonic solid because it does not have equal edges and angles like a platonic solid. Platonic solids have regular polygon faces where each face, edge, and vertex is the same. Cubeoids have rectangular faces and unequal edges and angles.
tetrahedron
equilateral triangles and regular pentagons
Three regular hexagons meeting at a vertex would form a tessellation. So they would form a plane not a solid.
A Platonic solid is a solid all of whose face are regular and congruent polygons.There are five of these:A Tetrahedron. Four faces, each an equilateral triangle.Ad InfoA Hexahedron (Cube). Six faces, each a square.An Octahedron. Eight faces, each an equilateral triangle.A Dodecahedron. Twelve faces, each a regular pentagon.An Icosahedron. Twenty faces, each an equilateral triangle.
A cube and a dodecahedron.
Oh, dude, it's like this Platonic solid is just super symmetrical, you know? So, no matter which way you flip it, it's gonna look the same. It's like that one friend who always has their good side in every picture, except in 3D.
A contradiction. A solid is a 3-dimensional object, a face is 2-dimensional. Hence you cannot have a solid face.
A solid with a regular polygon for each face is known as a perfect solid.