-^.^ ) ^5c- 



• r^. elenienta refoluimus, qiiae 

 11 Arcus proinde in "^»";^^ ?''"f,bi inuicem ad Pului- 

 ■ • veluti cuneolos ;^"'^"^!^;,,\,d,os oiculi, quibus 



nar vsque impofitos, a i ^,^^. .^^^^^^as, in-- 



ekmenta intercipuintur, ^eiu 



telligimus. 



/-1 'f Arcus interior alfer, 

 I„. C«m duo confiderari fo eant ^^ „,„,,, generaUutc 



alter extfnor, ^'.";' femper Arcutn defi- 



donetur Theona, mteuorem f ; Por- 



enabimus ve.uti f-n^^^f "\fj 'J fcala ponderum 

 ;,icis fig""m, exter.oa a leg _.^^„^^ „„„„ 



peudente. Tah en,m paOo ^ ^^^^^ ^^^^ ,, ,„- 



cxterioris, eo 'Pfo ^* ^^^' pornicis figura. 

 fa vice, manente intetna 



• • ;, r.int nmpliciffim»> qui- 



Haec in genere P""'^'?'''. ,'""„„ ad cuncos finitaa 



bus tota i''n'"t»t Theorja H nc tum ^^ ^ ^, 



„agn,tudinis fe""''"";,;^^ compaVandas patefit va fitus- 

 verforum firmitates inter le .'«"l^ . ^am pro diuerfa 

 ;:; definiendos max,mae '2"' rpeHucnmbente pondere. 



Lemma. 1- 



1 a-rT fi dno anguli 

 5.,. i„ triangulo "ttu.angulo ABC fi J^.^ 



"^t-'^ BAC BCA fuer,nt infimtefim, ^' '^^^'^ ,„,,,3 aC, 

 '"•'• fattra^ur. eiu^dem ovd^n. atque d.fferent, ^^^ ^^^ 



obtufo angulo ABC oppofit,, => l»"" ebtu- 



