An octagonal prism has a base with eight edges.
Octagonal prism.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 18 edges, 8 faces
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 6 faces, 8 vertices, 12 edges.
An octagonal prism has 8 side edges and 8 base edges. If you use whole straws for the 8 side edges, you'll need 8 straws. For the base edges, since you're using quarter straws, you would need 4 quarter straws for each of the 8 edges, totaling 32 quarter straws. Therefore, you would need 8 whole straws and 32 quarter straws.
An octagonal prism has 10 faces, 24 edges, and 16 vertices. Specifically, it has two octagonal bases and eight rectangular lateral faces. The edges consist of 8 edges from each base and 8 connecting edges between the bases.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 18, 12, 8
A trapezoid prism has 12 edges, 8 vertices, 6 faces and normally its base is at ground level.
A rectangular prism has 12 edges and 8 vertices.
A prism with an n-sided base will have 2n vertices, n + 2 faces, and 3n edges. 1 base, 8 vertices
An octagon based prism.
8 edges
A rectangular prism has 12 edges and 8 vertices.