The perimeter of the hall is the sum of its side lengths.
The perimeter of the museum exhibit hall is 240 feet
<h3>How to determine the perimeter</h3>
From the question, we understand that the shape of the museum exhibit hall is a regular octagon
The perimeter of a regular octagon is:
p = 8l
Where l represents the side length of the octagon
So, we have:
p = 8 * 30 feet
Evaluate the product
p = 240 feet
Hence, the perimeter of the exhibit hall is 240 feet
Read more about perimeter at:
brainly.com/question/17297081
Answer: b
Step-by-step explanation: hope this helps