22poſta toi compoſiia erit æqualis, per i Ie Axioma Euclidis.

Quoll crau faciendum.

Ado do, GY dαν’ν,& Mr uu⸗long(Helm d 09A,&d=, MM c aN gi pet N uf.

Puabus datis rectis inæqualibus, altera quidemſecta in dato ſigno, altera autem inſecta, circa ipſascirculum deſcribereœ.

Circa datas rectas inaqualesfit circulus deſcribendus. e quidemſit inſecta, autem ſecta in NRedieſumatur aquals qua biſariamſectain Centro interualso de-ſcribatur circulus cui accommo-detur e Meſographon æaquale rectæſecta prius in im, vt rectan-gulb ſub id eit, ſit aqualerectangulum ſul Et factum crit,quod pracipiebatur, per antecedentemo.

Erl& dogele ne Weg Scene us peo o-

(acc.

Super data recta terminata Gnomonem meſo-graphum conſtituer e.

Sit data recta terminata fuper qua conſtituendus ſit Cno-mon meſoerapluis. cut igitur erit baſis trianguli minoris orthogo-nij, aut