The area of the rectangle is 120m², the length of one of its sides is 15 cm. Calculate the perimeter of this rectangle.

1) Let’s convert 15 centimeters to meters:

1 cm = 0.01 m.

15 cm = 0.15 m.

2) The area of the rectangle is calculated by the formula: S = a * b, where a is the length, b is the width.

Based on this, the width is found by the formula: b = S: a.

Find the width:

b = 120: 0.15 = 800 m. – the width of the rectangle.

3) The perimeter of the rectangle is calculated as follows: P = 2 * (a + b).

P = 2 * (0.15 + 800) = 1600.3 m – the perimeter of the rectangle.

ANSWER: The perimeter of the rectangle is 1600.3 meters.