A triangular prism because it is a solid figure with two parallel bases that are triangles and three faces that are rectangles
A triangular prism matches that description.
A triangular prism have 2 triangular faces and 3 rectangular faces.
A Triangular Prism
A triangular prism.
A triangular based pyramid is the shape that best meets the criteria you are looking for.
A triangular prism.
Triangular Prism
Triangular Prism
Triangular Prism
A triangular prism has those kind of faces
Rectangular prism
Triangular prism
The faces might be arranged so as to make a triangular prism.