Menelaus of Alexandria (; , Menelaos ho Alexandreus; c. 70 – 140 CE) was a GreekEncyclopædia Britannica "Greek mathematician and astronomer who first conceived and defined a spherical triangle (a triangle formed by three arcs of great circles on the surface of a sphere)." mathematician and astronomer, the first to recognize geodesics on a curved surface as natural analogs of straight lines.
Menelaus of Alexandria (; , Menelaos ho Alexandreus; c. 70 – 140 CE) was a GreekEncyclopædia Britannica "Greek mathematician and astronomer who first conceived and defined a spherical triangle (a triangle formed by three arcs of great circles on the surface of a sphere)." mathematician and astronomer, the first to recognize geodesics on a curved surface as natural analogs of straight lines.