Rectangle with sides 2cm and 9cm. Find the perimeter of this rectangle.

If a geometrical figure is given, then along with other characteristics of this figure, one can operate with a parameter called a permeter. The perimeter of a geometric shape is the total length of the boundaries of that geometric shape.
In the task, a rectangle is given for which the sides are known: 2 cm and 9 cm. It is required to find the perimeter of this rectangle.
Let’s use the formula for determining the perimeter (P) of a rectangle P = 2 * (a + b), where a and b are the sides of the rectangle.
We have: P = 2 * (a + b) = 2 * (2 cm + 9 cm) = 2 * (2 + 9) cm = 2 * 11 cm = 22 cm.
Answer: The perimeter of a rectangle with sides of 2 cm and 9 cm is 22 cm.