The area of one rectangle is equal to the area of another rectangle, the length of the first is 18 cm

The area of one rectangle is equal to the area of another rectangle, the length of the first is 18 cm and the width is 15 cm which is equal to the width of the second rectangle if its length is 27 cm.

Find the area of the rectangle if the width and length of the rectangle are specified by the condition:

S = a * b, where S is the area of the rectangle, a is the width of the rectangle, b is the length of the rectangle.
S = 15 * 18 = 270 (cm ^ 2).

It is known that the area of the first rectangle and the area of the second rectangle are the same. Find the width of the second rectangle. To do this, you need to divide the area by the length of the rectangle:
a = S: b;
a = 270: 27 = 10 (cm).
Answer: 10 centimeters.