Question

can the surface area of a rectangular prism be calculated by adding the area of the base plus the areas of the triangular faces

Answer 1

No, the surface area of a rectangular prism cannot be calculated by adding the area of the base plus the areas of the triangular faces. The surface area of a rectangular prism can be calculated by adding the areas of all six faces of the prism, which includes the area of the base and the areas of the four rectangular faces.