That shape is called a triangular prism. A prism is made of rectangles arranged in a tube with any 2D shape at the ends. This shape determines what kind of prism it is, you can get pentagonal, hexagonal, and many other types of prism.
An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The number of perpendicular faces will depend on which particular octahedron you have in mind. The heptagon-based pyramid, for example, has none.
it is a decogonanon it is a decogonanon
triangular prisom
Hexagon based prism
The shape you've described is a right pentagonal prism.
A right pentagonal prism.
There is no such shape as a perpendicular prism.
None, because it is just a line. It is a one-dimensional shape.
That shape is called a triangular prism. A prism is made of rectangles arranged in a tube with any 2D shape at the ends. This shape determines what kind of prism it is, you can get pentagonal, hexagonal, and many other types of prism.
Any polygonal shape, other than a triangle can have perpendicular lines.
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An octahedron is a closed 3-d shape with 8 polygonal faces. There are 257 topologically different convex octahedra. The number of perpendicular faces will depend on which particular octahedron you have in mind. The heptagon-based pyramid, for example, has none.
A rectangular-based pyramid.
This shape has 2 opposite identical faces and some other which are parallelograms is a prism. A cylinder shape has 2 circular faces and one curved face.
it is a decogonanon it is a decogonanon
the other faces on a pentagonal prism would be rectangular