Which solid figure has two triangular bases and three rectangular faces?

The solid figure that has two triangular bases and three rectangular faces is a triangular prism. This shape is characterized by having two congruent triangles that serve as its bases. The sides connecting these triangular bases are rectangular in shape.

In a triangular prism, the two triangular bases are parallel to each other and connected by three rectangular faces that help to form the body of the prism. This distinct combination of triangular bases and rectangular lateral faces is what defines the triangular prism.

Other solid figures presented do not fit this description: a pyramid has a polygonal base and triangular faces converging at a vertex, a cylinder has circular bases and curved surfaces, and a cone has a circular base and a single vertex, with a curved surface leading from the base to the apex. Understanding the properties of these shapes helps in correctly identifying the triangular prism as the answer.