The tradition of drama in the western world can be traced back babylonia, greece, egypt or mesopotamia

The tradition of drama in the Western world can be traced back to Greece. The ancient Greeks were the first people in Europe who wrote plays, some of which are still relevant today. Even Shakespeare was quite inspired by their dramas when he wrote his own. Babylonia and Mesopotamia belong to the Eastern world, and Egypt to the Southern world.

Use the formula: (n-2)×180, where n is the number of sides(18-2)×180= 28800, now this is the full exterior angle of 18-gon so you divide it by 18.28800÷18=160