2.
Platonic Solid

Shape of Faces

# of Faces at Each Vertex

Vertices

Faces

Edges

tetrahedron

equilateral triangle

3

4

4

6

hexahedron (cube)

square

3

8

6

12

octahedron

equilateral triangle

4

6

8

12

dodecahedron

pentagon

3

20

12

30

icosahedron

equilateral triangle

5

12

20

30

Some things to notice in this table: