One side of the rectangle is 7 in, and the other is 5 in 3 cm. Calculate the perimeter of the rectangle.

The perimeter of a rectangle is equal to the sum of the lengths of all its sides. Since the opposite sides of the rectangle are pairwise parallel and equal, the perimeter of the rectangle will be equal to the sum of the lengths of its two adjacent sides multiplied by 2.

Let us present the data of the lengths of the sides in one number system.

7 dm = 70 cm;

5 dm 3 cm = 53 cm.

P = (70 + 53) * 2 = 123 * 2 = 246 (see)

Answer: P = 246 cm = 24 dm 6 cm.