The width of the rectangle is 7 cm, which is 7/9 of its length. Find the area and perimeter of this rectangle.

Since the width is 7 cm, and this is 7/9 of its length, then to find the value of the length, you need to divide 7 cm by 7/9, we get: 7: 7/9 = 7 * 9/7 = 9 cm the length of the rectangle. The perimeter of a rectangle is equal to the sum of all its sides. Since the opposite sides of the rectangle are equal, then P = 2 * a + 2 * b, P = 2 * 7 + 2 * 9 = 14 cm + 18 cm = 32 cm.The area of the rectangle is equal to the product of length and width: S = a * b , S = 7 cm * 9 cm = 63 cm square.
Answer: the perimeter of the rectangle is 32 cm, and the area is 63 cm square.