Describe the effect of westerners on the chinese economy and society.

Nowadays, Westerners influence Chinese economy in a positive way, as well as their society. The reason for this is that a lot of companies outsource their work to China where it gets produced - this in end helps the Chinese grow their economy, as well as consequently helps them improve their society. 

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