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.
Perimeter of Square = 4 Ã Length. Let's find the area of the rectangle below. To find the area of the rectangle, we find out how many one-centimetre squares we can fit into the rectangle. Area of the rectangle = 4 Ã 2. = 8 cm2. We need 8 one-centimetre squares to make a rectangle 4 cm long and 2 cm wide. The area of the rectangle is 8 cm2.