Curved surface area of a cuboid?

The curved surface area of a cuboid is not a standard term, as a cuboid has flat surfaces. However, if you are referring to the total surface area, it is calculated using the formula: ( 2(lw + lh + wh) ), where ( l ) is the length, ( w ) is the width, and ( h ) is the height. For just the lateral (or curved) surface area, you would consider the four vertical faces, given by ( 2h(l + w) ).