Selected propositions in geometrical constructions and applications of algebra to geometry. Being a key to the appendix of Davies' Legendre (1875)
Legendre, A. M. (Adrien Marie), 1752-1833, Davies, Charles, 1798-1876 · New York, Chicago [etc.] A.S. Barnes & company · leaf 48
PROPOSITIONS FROM LEGENDRE. 41 Prop. LVII.—Show that the three medians of any triangle meetin a common point. Demonstration.—Let ABC be any triangle and let BE and CDbe two of its medians, intersecting eachother in P. Draw DE; and through F, the middlepoint of BC, draw FP, cutting DE in Q,and…
Geometry
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