dh: 



RESOLVTIONR POLYGCNORVM 

 RCCTILINEORVM 



DiSShRlAllO SECVNiJA. 



A 11 c t o r c 

 J. I. LEXELL ^ 



I. 



Poftquam in priori dc hoc nrgumento Difrertiuio- 

 ne , vt (pcranius (iuis dihicide opoUiimus prin- 

 c-p;;i , qiiibus in fubfidium vocQtis rcCulutio Folyiio- 

 norum pcrficitur , dum rati ) tnntum h.ib-.tur late- 

 rum et angulorum eius circuitum includcntium ; 

 nunc id nobis propofuimus, vr olleiidair.us quoniodo 

 acquationcs pro refolutione Polygonorum fubminiflra- 

 tae it;i tr:ici;iri dtbcnt , \t npt;is ct commod;!S fup- 

 pediient (olutioncs. Qucm in finem omnes cafbs rc- 

 folutionum pro Tctragono h.ic reccnlendos ct di- 

 Tab. I ninclc cuolucndos ccnfuimus. Si igirur ABCD 

 ^'2 ^" fit quadribucrum , ciusque latera A B, B C, C D, 

 D A refpcdliue defigncntur liticris ^, b^ f, r/, angu- 

 li autem extcrni a A B, ^ B C, f C D, rt' D A in- 

 digitcntnr pcr httcras A, B, C, J), pro refblutionc 

 huius quadrilatcri fcqucntcs quatuor adipifcemur ac- 

 quationcs : 



I. d(i~aa-\-bb^-cc-\ ':.ahzo{.V,-\-z(ic co^.i^^-^rCyv^bc colQ 



II. dd'\-cc\-^dcco[.'Dzzaa-\-bb-\-2abQO[.'^ 



in. 



