Construct a rectangle, one side of which is 9 cm long and 54 cm in area. Find its parimeter.

The area of a rectangle is calculated as the product of its length and width. Since we know the area of this rectangle, as well as the length of one of its sides, therefore, we can calculate the length of the other side:

54: 9 = 6 cm.

The perimeter of a rectangle is found as the sum of the lengths of all its sides. Let’s calculate the perimeter of this rectangle, taking into account the fact that the sides of the rectangle are pairwise equal:

P = 9 * 2 + 6 * 2 = 18 + 12 = 30 cm.

Answer: the perimeter of this rectangle is 30 cm.