It is a 3 dimensional shape
you can make a square based pyramid using 4 triangles and a 1 square
square based prism?
You are describing a triangular prism. It has a rectangular base, two rectangular sides and two triangular ends.
a 3D shape has 3 dimensions; length, with and depth
A triangular prism
Triangular prism
There is no 3D shape with 6 faces: 4 rectangles and 2 triangles. See the link for all forms of hexahedra.
It is a 3 dimensional shape
you can make a square based pyramid using 4 triangles and a 1 square
square based prism?
It doesn't exist. The least number of sides for a 3-D shape only made of triangles is 4.
A triangular pyramid. It has triangles on its 3 sides and a triangle on the bottom for a base.
it is called a triangular prism
You are describing a triangular prism. It has a rectangular base, two rectangular sides and two triangular ends.
No 3D shape with FLAT SIDES has exactly 3 faces. 4 is the minimum.
a 3D shape has 3 dimensions; length, with and depth