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 square meter is the basic unit of area of the Metric System. Area is length by length, so: A square that is 1 meter on each side. is 1 square meter.You could have other shapes (such as a rectangle that is Â½ a meter by 2 meters) that also make 1 square meter. kilometer is a thousand meters, so a square kilometer is also: 1,000 m Ã 1,000 m = 1,000,000 m 2 (square meters). In other words a square kilometer is one-million square meters. Square kilometers are commonly used to measure large areas of land.