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# Title: [Philosophiae Naturalis Principia Mathematica] Philosophiæ Naturalis Principia Mathematica (shelfmark Leibn. Marg. 166)
# Folio 91, page id 1041163592:0125
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PRTNCIDLA MATHEMALLCA.
Corol. Tlinc recta duci porest cujus partes longitudine dacxe rectis LLuE
tribus posicione datis incerjacebune. Concipe Priangulum D F F, PuIMVO.
puncto D ad latuS P. F accedente, d lateribus D F, D F in di-
rectum posieis, mutari in lineam rectam, cujus pars data D F rec-
eis positione datis AB, AC, et ParS data D F rectis politione da-
eis AB, BC interponi debet; et applicando constructionem prae-
cedentem ad hunc casum solretur Problema.
PROPOSITIO ZXVHII. PROBLEMA XX
Trajectoriam specie e marnitudine datam describere, cujus partes da.
tae reclis tribus positione datis interj acebunt.
Describenda sic Trajectoria qua sc similis ex aequalis Linexe cur-
eX D F F, quaeque a rectis tribus AB, AC, BC Positione datis, in
partes datis hujus partibus DP e P. F similes e aequales seca-
BIEuT.
105 D
ABC rectaS D E, F F, D F, ee crianguli hujus D F. F ponc an
F
ad rectas illas positione cacus pet LCMl. XXVF) Dci
Cirea TrIdL
alum deseribe Trajectoriam Curra D F F similem ec
equalem. Q. F. F.
2. LMML