De *Divifone S uperficierum. 14.5 trahatur FD perquam fiet divifio poftulata, eft enim * BE: EC:: FBD. AFDC. Nam à AGF — DGE. ut in Schemate proximo, '»4 VII. Datum triangulum dividere in ratione data per lineam lateri alicui parallelam: dividatur A ! … Pi v5 B DEG C fi ABC ratione S ad R perlineam parallelám late: ti AC.? fiat S: R:: BE:EC . fiant etiam BE : BD. BC z ductaque DEF parallela lateri AC 116,6, 337.01 31y€6, T
Mathematics
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