To find the circumference of the top of a cylindrical container, you can use the formula for the circumference of a circle:
\[ C = \pi \times d \]
where \( C \) is the circumference and \( d \) is the diameter.
Given the diameter of the container is 12 cm, the formula becomes:
\[ C = \pi \times 12 , \text{cm} \]
Using \( \pi \approx 3.14 \):
\[ C \approx 3.14 \times 12 , \text{cm} \approx 37.68 , \text{cm} \]
So, the circumference of the top of the container is approximately 37.68 cm. If you want a more precise answer, you can use the more accurate value of \( \pi \) (approximately 3.14159):
\[ C \approx 3.14159 \times 12 , \text{cm} \approx 37.6991 , \text{cm} \]
Therefore, the circumference is approximately 37.70 cm when rounded to two decimal places.