Which shape do the flags for visual distress signals typically have?

The flags used for visual distress signals are typically rectangular in shape. This design is specifically chosen because the rectangular shape provides greater visibility and recognition from a distance, which is crucial in emergency situations on the water. A rectangular flag can be easily waved or hung up, creating a larger area that can be seen by other boaters or rescuers.

In the context of boating safety, the use of such signals is essential for alerting others to distress, and the rectangular shape ensures that the signal is easily identifiable and distinct from other shapes that might be present in the environment. The ability to quickly identify and understand the nature of the signal can make a significant difference in emergency response times.