The state court systems are most often structured in what way?

Most commonly, there are three types of courts in United States individual states. The first is the superior court, which deal with most cases. The higher are the courts of appeal. This is where you can appeal to decisions from the superior courts. The highest form is the state supreme court. If you are still unsatisfied after that, only step left to go to is the supreme court of the United States.

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