In outline, the theatre is a semi-circle with an outer diameter of 82 meters. The theatre itself is divided into the seating section (cavea) and the stage (orchestra). The cavea, the area in which people gathered, is hollowed out of a hill or slope, while the outer radian seats required structural support and solid retaining walls.
The theatre is generally a semi-circle with an 82-meter diameter. It comprises the seating area (cavea) and the stage (orchestra). The cavea, where people gathered, was carved into a hill or slope, while the outer radian seats needed support structures and solid retaining walls.