324
Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
Answer:

Step-by-step explanation:
Squares 
Volume 
Generally the equation for Volume of box is mathematically given by




Since
Length of cardboard is


Therefore
Dimensions of the piece of cardboard is

The sampling distribution standard deviation is the population standard deviation divided by the root of the sample size.
sampling distribution standard deviation = 6.00/√36 = 1.00
━━━━━━━☆☆━━━━━━━
▹ Answer
<em>12</em>
<em />
▹ Step-by-Step Explanation

Hope this helps!
CloutAnswers ❁
Brainliest is greatly appreciated!
━━━━━━━☆☆━━━━━━━