Add together the areas of all 6 sides.
Chat with our AI personalities
Surface Area is technically the same as area if we are dealing with 2-dimensional surfaces. But, it is mostly used to find an area of a 3-dimensional object.
3-dimensional is not flat, like a cardboard box, while 2-dimensional shape is flat, like a face of a 3-D shape.e.g, a face of a box.
A triangle by definition only has 2 dimensions.
The surface area of the 3-D figure will be the total of the areas of the 2-D figures.
multiply length x width x height.