You are a square based pyramid that has 5 faces, 8 edges and 5 vertices.
A pyramid. With a square base.
'Enneahedron' - a solid figure with nine faces
A triangular prism yes it is
Triangular prism of course!
a pyramid
A rectangular pyramid (four-sided base) has 5 faces and 5 vertices.
a rectangular pyramid rectangular base and 4 triangular sides = 5 faces
You are a square based pyramid that has 5 faces, 8 edges and 5 vertices.
A square based pyramid
square pyrimad
A polyhedron is any 3D solid (such as a cube) - therefore, it can have any number of faces.
Despite the blind answer of many uneducated users of this site, a pentagon is 2 dimensional with 5 SIDES, thus not a solid figure. A pentahedron, though, is a solid figure of five FACES. PENTAHEDRON
Pyramid
square pyramid rectangular prism
The Pyramid
An object with 5 faces is a heptagon. The specific heptagon in this case is a square based pyramid.