A rectangle with a length and width that are whole numbers of centimetres has an area close to 400 cm square. What could the rectangle’s length and width be? What is the area of the rectangle for each combination? Think of several possibilities.
One possibility is a rectangle with length 20 cm and width 20 cm, which has an area of 400 cm square. Another possibility is a rectangle with length 40 cm and width 10 cm, which also has an area of 400 cm square. Another possibility is a rectangle with length 25 cm and width 16 cm, which has an area of 400 cm square. Each combination has an area of 400 cm square.
