5^3 would be the answer
hope this helps
Wish I could help. :( But I'm not sure.
Answer:
Step-by-step explanation: I just answered for you?
The plane is 2 dimensional because it has height and width, which is a total of 2 dimensions.
The third choice is your answer since it is the only choice that has the proper dimension along with the proper explanation.
Have an awesome day! :)