12
Rectangular Prism
A rectangular prism has 6 faces, 12 edges and 8 vertices.
A triangular prism has 9 edges!
A Pentagonal Prism has 15 edges.
A square prism has 12 edges.
A 2D rectangle has no edges but has 4 boundaries, and a 3D rectangle is a rectangular prism and has 12 edges.
12
12
8
12 edges/ 8 vertices/ 6 faces
A rectangular prism is basically a box (look at like a cereal box, for example). There are 6 rectangle faces, and 12 edges.
Rectangular Prism
the rectangle has 6 faces 8 vertice's and 12 edges who doesn't know that
does a rectangle prism have 6 sides
A rectangular prism has 6 faces, 12 edges and 8 vertices.
A triangular prism has 9 edges!
There are 30 edges on a decagonal prism.