pyramid 3d model

I would like a 3D model of a triangular box with the following specifications: The triangle has four corners, not three, because the top of the triangle is not pointed. The base of the triangle measures 197 mm. The left and right sides of the triangle each measure 199 mm. The top side of the triangle is flat, not pointed, with a width of 28 mm. Please create the 3D model so it can be used later in a mock-up or visualization