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.
Answer: 2 Area = 80 cm 2 ?16 cm(3) The area of a square is 49 mm. What is the length of each side? Answer: 2 Area = 49 mm 2 ?Area = 72 cm 2 ?12 cm(5) The perimeter of a rectangle is 160 cm. The rectangle is 4 times longer than wide.