Answer:
The total area of the surface of a three-dimensional object. Example: the surface area of a cube is the area of all 6 faces added together. See: Area.
Surface area is the sum of the areas of all faces ( for surfaces ) on a 3D shape. We can also label the length ( l ), width ( w ), and height ( h ) of the prism and use the formula, SA = 2lw + 2hw, to find the surface area.
Step-by-step explanation:
Surface area is measured in square units. Such as square feet ( ft ), square inches, ( in² ), square meters ( m² ), square kilometer ( km² ), square millimeters ( mm²).
The surface area of a three-dimensional object is the total area of all of its surfaces. Surface area is important to know situations where we want to wrap something, paint something, and eventually while building things to get the best possible design.