cube square prism
Octagonal prism
2
An octagonal prism
Octagonal prism
A 3-D octagon is called an octagonal prism. It is a geometric figure with two parallel and congruent octagonal faces connected by rectangular faces. The octagonal prism has 10 faces, 24 edges, and 16 vertices.
The three-dimensional shape that has 2 octagons and 8 rectangles is called a truncated octagonal prism. A truncated octagonal prism is a polyhedron with 10 faces, including 2 octagonal faces and 8 rectangular faces. The octagonal faces are the bases of the prism, while the rectangular faces are the lateral faces that connect the bases.
a cone
hasarafazoid
A tetrahedron.
Because it's a 3 dimensional shape that has surface area and volume.
There is no such shape.
Heptagonal pyramids, if you consider the base a side. Octagonal pyramids, if you don't.