Did the Arabs invent a boat with a triangular sail to travel Africa?

The Arabs did not invent the triangular sail, but they did play a significant role in its development and use in maritime navigation. The triangular lateen sail, which allowed for better maneuverability and sailing against the wind, was utilized extensively by various cultures, including the Arabs, in their trade across the Indian ocean and Mediterranean. This innovation facilitated maritime travel and trade routes, contributing to the spread of culture and commerce in Africa and beyond.