Which term refers to ropes used for controlling the angle of the sails?

The term that refers to ropes used for controlling the angle of the sails is "sheets." Sheets are specifically designed to adjust the position and angle of the sails relative to the wind. By pulling on the sheets, a sailor can trim the sails to optimize performance, enabling better control over the boat's speed and direction. This adjustment is crucial for maneuverability and efficiency in sailing.

Halyards, while also important, are used to raise and lower the sails rather than to control their angle. Sails represent the fabric structures themselves, and cables generally refer to stronger, larger ropes used for structural support in various applications, not specifically for sail control. Understanding the functional distinctions among these terms is key to effectively managing a sailing vessel.