The elements of Euclid for the use of schools and colleges; comprising the first six books and portions of the eleventh and twelfth books; (1903)
Euclid, Todhunter, I. (Isaac), 1820-1884, ed. edt, Simson, Robert, 1687-1768, ed. edt · London; New York, Macmillan · leaf 426
e, the lineswill be straight lines, and the system will consist of three straight linesforming a triangle. We will give a brief enunciation of the theorem which we are aboutto prove, for the sake of assisting the memory in retaining the result;but the enunciation will not be fully comprehended… … Let ABC be a triangle, and let a straight line be drawn cutting theside BC at D, the side CA at E, and the side AB produced through I APPENDIX. MENELAU8 THEOREM. Ixxxiii. B at F. Then BD and DC are called serjmenU of the side BC, whilstCE and EA are called segments of the side CA, and AF and FB…
Euclid's Elements · Geometry · Mathematics, Greek
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
