Calculate the perimeter and area of a rectangle with sides of 8cm and 3cm.

According to the condition of the problem, the length of the rectangle is 8 cm, and the width of the rectangle is 3 cm.
Find the perimeter P of this rectangle.
The perimeter of a rectangle is twice the sum of the length and width of the rectangle, therefore:
P = 2 * (8 + 3) = 2 * 11 = 22 cm.
Find the area S of the given rectangle.
The area of the rectangle is equal to the product of the sides of the rectangle, therefore:
S = 8 * 3 = 24 cm².
Answer: the perimeter of the rectangle is 22 cm, the area of the rectangle is 24 cm².