The area of the rectangle is 18 cm2. How long can the sides of this rectangle be?

The area of a rectangle is calculated by the formula S = a * b, where a is the length of the rectangle, b is its width. Therefore, we only need to substitute the numbers that, when multiplied by each other, give 18.

Several options are possible:

1) length – 1 cm, width – 18 cm. 1 * 18 = 18;

2) length – 18 cm, width – 1 cm. 18 * 1 = 18;

3) length – 2 cm, width – 9 cm. 2 * 9 = 18;

4) length – 9 cm, width – 2 cm.9 * 2 = 18.