A rectangular prism.
A rectangular prism and a cube! :)
3 dimensional is a cube. it has 8 edges
-5
A parallelopiped, which is the 3-dimensional equivalent of a parallelogram.
A cube is a 3 dimensional figure that has 6 faces, 12 edges and 8 vertices
A rectangular prism and a cube! :)
This is an impossible three-dimensional figure. A pyramid has 5 faces and 8 edges but has 5 corners, not 4. A 4-cornered three-dimensional figure has only one itteration: that of a 4 sided pyramid of 6 edges. Since your shape is 5 sided with 8 edges I would say you have got a number wrong there somewhere.
A cube
It is a cube.
A quadrilateral based pyramid (the base has four sides).
An octagon is a 2-dimensional (flat) figure, with 8 sides and 8 vertices.