👉 The archilute is a type of line segment in geometry. It is an arc, and it has two endpoints, called the "vertex" and the "endpoint." The vertex is the point where the line crosses the x-axis (the y-axis), while the endpoint is the point where the line intersects the y-axis. The archilute is named after Archimedes, who discovered its properties in his book "On the Sphere and Cylinder."