E m producere licet ¿E [ ad 102 F, ut ]
fit E Fad ¿E ut F H ad tervallo C Sc agere i,f parallelam ipfi BD. Eodem recidit fi centro HI, inIH
ad E, ut V fit defcribatur zTaequalis 7 circulus F, Se agatur fecans B f D ipfi in X,BD producatur parallela.
i,i X T Prop. XXIX. Prob. XIX.
IrajeSloriam fpecie datam defcribere, quæ a reStis quatuor pofìtione daDeftcisr
ibine pnadrat efsi tf eTcarbaijteufrt,o orirad ine, fpecie & proportione datas. fg h i,F G H quae fimilis fît line* curvai I, Se cujus partes fg, g h, ht illius partibus F G, fpîmroipleosr&
G H, H I rtieofntiasl es, A-
BScAD
BDD 8c, EBC- • * A D Sc A I- pdoa FanIt,.ffiteicounned deAfcfrtiibs disa, arteufrt titse,rptiraim isT FraGpe,tear ptiriism ziGumH inist,e frejcaucne-6
, HI, ' //•
nrijbs* fe quod fit Trapezio F G H I lfimg hilei \ l O j yiixxA V exick
& cujus anguli/g, b, ¿tangant rec- m;tas illas pofitione datas \ v | \ A B, BD, CE fingulifingulas diftoA oDrr- . 1/ \ ( \ dine. Dein |per Lem. XXVII . ccoirncfai mhiojics .T;rapezium defcribatur )Trajeftoria cury* dine* FGHI , • 1 1 1 1 | I I I Sclo-
Scholium. GHCo, nHfirIm, F eIt ipamro dpuoct eGftF h oacd P Vro, bljeumngae uqt; fFeHqu,i tuÍrG. ,J u&n fatinsgFuGlis, F G H, V F H fac angulos C A K ,AK, AL cum refta BD in K DAL *quales. Concurrant Se L, Scquarum K M conftituat angulum AKM i nadeqeuaaglaemnt uárn KguMlo, GL HN I,, fitq; adAKuteftHI adGH; Sc L Ñ N *qualemánguloFHI, fitq; ad ALu cto HnfIti tauda tF aHn.g uDluumca Ant Lu-r aAuLte,m u At Kli, KM, AL, LN ad eas partes linearum AD, AK, terxCAKMC, A L K , literis FGHIF in orbem redeantD, & A La fNtaD eodem ordine cum MN occurrat reft*
E z ut F G ad G I ; & per P agatur QPf,contineatangulum qu* cum refta AED P Qcurrat in/ E aequalem anguloFIG, reft*q; AB ocSc
jungatur fi . Agantur autem P E SePpartes linearum CE, PE, ut literarum PEiP &PE&P idaedm ’e faist, ordo circularis qui literarum F G HIF , & fifuper linea f i quoq; literarum ordine confìituatur Trapezium eodem fghì Trapezio F G H I tur Problleimmiale., &circumfcribatur Trajeftoria fpecie data, folverumH
ainft eonrbuisb udse inorvbeinbtuiss dientveernmieinnedmis.u s. Supereft ut motus coSrEpCo--