Text-book of Euclid's elements for the use of schools : books I - VI and XI (1900)
Hall, H. S. (Henry Sinclair), 1848-1934, Stevens, F. H. (Frederick Haller), 1853-1933 · MacMillan : London · leaf 133
f CZ. q.e.d. By means of this Corollary it may be shewn that in any trianglethe shorter median bisects the greater side. [The point of intersection of the three medians of a triangle iscalled the centroid. It is shewn in Mechanics that a thin triangularplate will balance in any position about this… … Let ABC be a A, and AD, BE, CF- the three perp8 drawn fromthe vertices to the opposite sides. Then shall the perp3 AD, BE, CF be concurrent. Through A, B, and C draw straight lines MN, NL, LM parallelto the opposite sides of the A. Then the figure BAMC is a parm. Def. 36. .-. AB=MC. i. 34, Also the…
Geometry · Mathematics
Internet Archive · UBC Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Divina proportione : opera a tutti glingegni perspicaci e curiosi necessaria oue ciascun studioso di philosophia: prospettiua pictura sculptura: architectura: musica: e altre mathematice: suavissima: sotile: e admirabile doctrina consequira: e delecterassi: co[n] varie questione de secretissima scientia (1509)](https://img.insideoutlibrary.com/img/200/ia-divinaproportion00paci-127-350.webp)
