A cylindrical glass vase is 6 inches in diameter and 12 inches high there are 3 inches of sand in the vase, as shown below.

there's plenty of info

what is the question?

I apologize, but it seems that the description of the vase and the sand is missing. Could you please provide more details or a specific question related to the vase and the sand?

erm... we cant help you, there isn't enough info in there, please post all the info