how to define the length height and width for surface area of a triangular prism
Surface Area. Rectangular Prism The surface area S.A. of a rectangular prism with base l, width w, and height h is the sum of the areas of its faces. S.A. = 2lh + 2lw + 2hw Practice Problem 1 Find the surface area of the rectangular prism shown to the right.ectangular Prism The surface area S.A. of a rectangular prism with base l, width w, and height h is the sum of the areas of its faces.