The area $A$ of a rectangle is calculated using the formula:

$A = \text{length} \times \text{width}$

Given the width is $5$ cm and the length is $6$ cm, the area is:

$A = 6 \times 5 = 30 \text{ cm}^2$

Answer: The area of the rectangle is $30$ cm².

Would you like more details or have any questions?

Here are 5 related questions to explore further:

1. What is the perimeter of the rectangle with the given dimensions?
2. How does the area change if both length and width are doubled?
3. What is the diagonal length of the rectangle using the Pythagorean theorem?
4. How would the area formula change for a parallelogram?
5. If the rectangle was divided into two equal squares, what would be the area of each square?

Tip: Always ensure the units are consistent when calculating area or perimeter.