3D Shapes

My shape is ...
A pentagonal prism
It has

7: Faces
15:Edge
10:Corners  (vertices)




Mrs Roils Formula

Faces + Corners ( vertices ) -2 = Edges

Example  7 faces + 10 corners =-2=15 and  I have 15 Edges

 My buddy shape is...
 A Cube
 It has

6: Faces
8: Corners (vertices)
12 : Edges

Mrs Roils Formula

Faces + Corners ( vertices ) -2 = Edges

Example 6 Faces+ 8 Corners -2= 12 and my buddy has 12 Edges