What kind of shapes represent lateral markers, as used on the water?

Lateral markers are important navigational aids used on waterways to indicate the edges of navigable channels and guide boaters safely through areas where navigation is necessary. These markers are typically represented by specific shapes that help boaters easily identify their meaning on the water.

In the case of lateral markers, conical shapes are used to indicate one side of the navigational channel, while cylindrical shapes represent the opposite side. The conical markers, often referred to as "nun" buoys, are usually green and pointy, signifying the starboard side when entering a port or harbor. In contrast, the cylindrical markers, known as "can" buoys, are typically red and have a flat top, indicating the port side under the same conditions. This color and shape differentiation is crucial for boaters to navigate safely and correctly.

The other options do not accurately reflect the shape characteristics of lateral markers: triangular and circular do not correspond to common lateral marker shapes; rectangular and flat are not standard in this context; and vertical and horizontal refer more to the orientation of markers rather than their specific shapes. Understanding these shapes and their meanings is essential for safe navigation and compliance with boating regulations on Michigan waters.