👉 Menelaus is a theorem in geometry that states that if three lines are concurrent, then they intersect at a point. This theorem was first discovered by Menelaus of Alexandria and is named after him. The theorem can be proven using two parallel lines and a transversal, which is the line that intersects the other two lines. The proof involves the concept of concurrence points, where three lines are concurrent if they intersect at exactly one point. This intersection point is known as a Menela