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

The first step is to calculate what the length of the rectangle is, knowing that 7 cm is 7/9 of it. In order to find a number by part, you need to divide this number by part.

7: 7/9 = 7 * 9/1 * 7 = 9 cm.

We calculate what the area and perimeter of a rectangle 9 cm long and 7 cm wide are equal to. The area of a rectangle is equal to the product of length and width, and the perimeter of a rectangle is equal to twice the sum of the length and width.

S = 9 * 7 = 63 cm².

P = 2 * (9 + 7) = 2 * 16 = 32 cm.

Answer: 32 cm, 63 cm².