Sao T>E PRE5SI0NE TONDERlS 



vnde p determinatur ex quo deinceps ct y et * 



inootelcent. 



Ell vero 



et + ;ac-(a^^)'=G(3(«+^}-+p-^0- 



Corollarium i. 



30. Si bafis fuerit triangulum rcdangulura 

 AGD, quod fit fi ^ — o ternac uoftrae aequatio- 

 nes erunt : 



I. G — laac-\-\^a'c-\-lyacc 



II. ^=z l a a c -\-]> ^ a" c -\- U y a (^ c 



III. ^— saaf4-ip«V + ; ya£^. 



Hinc 



',a^rr=:G(3-V) 

 .^(3fl^rr=:G(l?-i-i) 

 ,',y^.^=G(V-|-) 



atque hinc pro quouis pun^^o hutus bafis, binis 

 coordiiiatis x et j determinato , prefiio erit 

 — a.-\-^x-\-yj' 



Co r o 1 1. 2. 



31. Si bafis fueiic triangulum Ifofccles quod 

 tucnit fi b — Oi tcrnae aequationes noftrae iunt 



G z:zaac~\-^aac^'jyacc 

 ^':=: \aac-\-'^^a a c-^wy a c c 



^^^ a a c -^-l^ a ac-^\ y a c c 



