The surface area of a right rectangular prism is the amount of space on it.
Muna's claim is incorrect
<h3>How to determine the surface area?</h3>
The surface area of a right rectangular prism is calculated as:
A = 2 * (lw + lh + wh)
So, we have:
A = 2 * (8 * 16 + 8 * 12 + 16 * 12)
The above expression implies that Muna's claim is incorrect
Read more about surface areas at:
brainly.com/question/27002333