A regular n prism has 18 edges. One side edge is 10cm long and the other side is 5C long. What is the side area of this edge?

A regular n prism has 18 edges. One side edge is 10cm long and the other side is 5C long. What is the side area of this edge?

N prism has 3N edges, so n = 3 / 18 = 6
10*5*6=300