What shape represents Class C airspace on aeronautical charts?

The shape that represents Class C airspace on aeronautical charts is indicated by solid magenta lines. Class C airspace typically surrounds busy airports and is designed to manage aircraft operations in areas with high air traffic. The solid magenta lines provide a clear visual representation of this airspace, making it easier for pilots to identify and navigate around areas with controlled air traffic.

In contrast, other airspace classes are represented differently. For instance, Class D airspace is shown with dashed blue lines, while Class B airspace is depicted with solid blue lines. Understanding these distinctions is crucial for pilots when planning their flight paths and ensuring compliance with airspace regulations.