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# Title: Erhardi Weigelii Sacrae Caesar. Maiest. ut & Com. Pal. Sultzb. Consiliarii, Supr. Artium Archit. Directoris Saxo Ien. Mathemat. PP. totius Academiae Senioris, Philosophia Mathematica (shelfmarks Leibn. Marg. 65; ZEN Leibn. Marg. 65)
# Folio 108, page id 79876922X:0594
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108
DE DIRECTIOHE
utrinq aut duos rectos, auc duobus rectis aequa-
les. Breriter: Auguli concigui (deinceps,
EDEE etS,) sunc inter se aequales.
Condictamen I. Sap. Dir.
Si plures rectae quam una ad idem punctum
eidem recta insistant; anculi fient duo-
bus rectis aguales.
Condict. II.
Dua recta se invicem secantes, efficiunt an-
culos 4. rectis aguales.
Condict. TTI.
Omnes anguli circa unum punctum consti-
tuti consiciunt 4. rectos.
Productum III.
Directioms tractus rectus, recto
transvertalis, aegualiter divers
sic ab eodem ab utraque parte
tranlitus.
FDEOrSO
Nimirum in Fis. 12. ut Divergentia FC,
ab FB, sic xequalis Diversentixe FD, ab F A.
Tulso dicitur: recta rectam secans, Facit arigu
105 ad verricem aequales nempe Cit B, AFD.
Demoi