Mathematician:Menelaus of Alexandria

Greek mathematician and astronomer.

Very little is known about him.

Nationality
Greek

History

 * Born: c. 70 CE, possibly in Alexandria, Egypt
 * Died: c. 130 or 140 CE

Theorems

 * Menelaus' Theorem

Books and Papers

 * Sphaerica, which survives in an Arabic translation

Several other works of his are known about, but unfortunately appear not to have survived:
 * On the calculation of the chords in a circle
 * On the Knowledge of the Weights and Distribution of Different Bodies
 * The Book on the Triangle
 * Elements of Geometry (translated into Arabic by )

Also see

 * : Chapter $5$: Eternal Triangles