Six faces.
A 3-d shape with 6 equal faces is a cube. It has 6 squares as it's faces. A 3-d shape with 6 equal faces and only 2 squares is a rectangular prism. It has 2 squares and 4 other rectangles (squares are rectangles too) as it's faces.
You can't have a 3-d shape with only 2 faces. A triangular prism has 9 edges and 6 vertices, but it has 5 faces.
A cone !
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.
Six faces.
A 3-d shape with 6 equal faces is a cube. It has 6 squares as it's faces. A 3-d shape with 6 equal faces and only 2 squares is a rectangular prism. It has 2 squares and 4 other rectangles (squares are rectangles too) as it's faces.
Well a rectangle is a 2-D shape so it really only has 1 face and 4 sides
A 3-D shape with 8 faces is an octahedron.
You can't have a 3-d shape with only 2 faces. A triangular prism has 9 edges and 6 vertices, but it has 5 faces.
A cone !
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.
There is no 3-d shape with 4 and 1 = 5 triangular faces.
Octagon. * * * * * An octagon is 2-dimensional. The regular 3-d shape (all faces the same) is the octahedron, but a hexagonal prism also has 8 faces.
Cylinder
A triangular prism would fit the given description
A cylinder.