The cube's surface area consists of six squares; you can simply add the area of each of the squares. Note that each of the squares has the same size.
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Lateral area = surface area of 4 sides of the cube = 4s2 = 4 x 52 = 100
find the area of a base and then multiply by six. Then you square it. or 6 x ba (2)=lateral area
To tackle this you first need to know the equations for both volume and surface area. The surface area of a cube is 6x2 where x is the side length. The volume of the cube is x3. Thus x is the cube root of the volume. We can substitute this in to the surface area equation and say that the surface area of a cube is 6volume2/3 This can also be rearranged to say that the volume of the cube is (the surface area/6)1.5
The total surface area is 150mm2 and the volume of the cube 125mm3
If each edge of a cube is w, then the area of each face of the cube is w2 .Since the cube has 6 faces, its total surface area is 6w2.The volume of the cube is w3 .