Mathematics - Geometry - Volume and Surface Area - Surface area of prisms - Surface Area of Rectangular Prisms

6 steps: (1) SURFACE AREA = total area of all faces. (2) A rectangular prism has 6 faces: 3 pairs of identical rectangles. (3) SA = 2lw + 2lh + 2wh. (4) Example: 5×3×4. SA = 2(5)(3)+2(5)(4)+2(3)(4) = 30+40+24 = 94 cm². (5) For a CUBE: all faces are identical squares. SA = 6s². (6) Net approach: unfo