SA = 294 square inches.
Surface Area of Cube is 6a2 where a is the length of one Side..... that is 3 inches (7.62 cm)Therefore, S.A. = 6*a*a = 6*3*3 = 9*6 =54 Sq.inch
Ok, say you have a large cube with edges of one inch each. If you cut that cube into eight separate cubes, each with a side length of .5 inches, the surface area is increased, because now more of the original substance is exposed.
Each of the 6 sides has a 6*6 square inch surface (36 square inches). You should now be able to complete the calculation for the entire cube yourself.
Each face of the cube would have an area of 4*4 = 16 sq inches. A cube has 6 faces so the total surface area = 6*16 = 96 sq inches.
The surface area of a 12-inch diameter sphere is 452.39 square inches.The formula for surface area of a sphere is 4*pi*r2 where r=radius
216 square inches.
The surface area of a 1 inch cube is: 6 square inches.
216 square inch total surface area, divide that by 6 to have the area of each square face, 36 square inch. The square root of that is the length of one side, 6 inches.
surface area of each piece would be 100 sq.inch
The surface area is 54 square inches.
The surface area is 13.5 square inches.
The bulk of the question is irrelevant ! If all you need is the surface area of the 3-inch cube, simply multiply 3 x 3 x 6 to give 54 square inches !
Surface area formula for a cube is 6 x base x height. So the SA of a 2 inch cube is6x2x2 which equals 24 square inches.
54 sq in
24inchessquare
volume is 12x12x12 surface area is 12x12x6
74 square inches