A pentagonal prism has 15 edges
Spherical
Triangular prism
An octagonal pyramid has 16 edges.
A 16-sided 3D shape is called a hexadecaheron or a 16-cell. It is one of the six regular polytopes in four-dimensional space, analogous to how a cube is a three-dimensional regular polytope. Each of its faces is a tetrahedron, and it is characterized by having 16 vertices and 32 edges.
Nonahedron
A 3D shape that has 6 edges is called a hexagonal prism.
An octagonal pyramid.
corners of a 3d shape
octagonal prism
A pentagonal prism has 15 edges
A cube
A circle
A cube
triangular prism
Sphere
Spherical