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.
Area of a Rectangle. The area of a square that has a side-length of 1 cm is 1 square centimetre (or 1 cm 2). To find the area of a rectangle by the method of counting squares, we divide the rectangle into small squares of one centimetre side-length.Consider a rectangle of length 5 cm and width 3 cm.Using the method of counting squares, we find that the area of the rectangle is 15 cm 2.o find the area of a rectangle by the method of counting squares, we divide the rectangle into small squares of one centimetre side-length. Consider a rectangle of length 5 cm and width 3 cm.