There are a variety of modern definitions of economics, some reflect evolving views of the subject or different views among economists.
So the area of the square is 7 x7 = 49 cm^2 and the perimeter of the square is 7 x 4 = 28 cm. And in example 1 you have a square of side length 8cm and you need to work out the area and perimeter of the square. So the area of the square is 8 x8 = 64 cm^2 and the perimeter of the square is 8 x 4 = 32 cm.
The surface area of the smaller cubes = 6 (1) = 6 cm. Therefore, the surface area of 64 such cubes = 64 * 6 = 384 cm. The surface area of the big (original) cube = 6(4) = 6*16 = 96 cm. % increase = (384 â 96) / 96 Ã 100 = 300% Example 6: A cube whose sides are 10.7 cm in length.Find the surface area of the cube.f we want to calculate the area of a cube then itâs always better to see each surface as a square and a cube is made up of six equal squares. Considering each side of the square as âaâ, then the area of each square will be a. Therefore, the surface area of the cube will be 6a.