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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)
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2C
DE Invescearo
Reminiscimur autetm quod recta perpendien.
Paris AL A. hypocenesae Ceum dividens paral-
dela sic uerique lateri; criansulum ieaque rectan-
culi dimidium L. R C. ad eandem Balin CIB. in
aisclem parallelis CiF, AMI. verrice so facite
cranstoni pocerie, manence girancitare. Frans
Ponamusitaque verticem L in ipsum prnctum
A. per rectam F. A, Ec a sequetur hoc criansulum
dimidium rectanguli) latus commune RC.
cum criangulo AC.I, quod dimidium est esti
AC. I. Ted ende constabit nobis dimidium re-
ccanguli C. P A. aequale esse dimidio eri AC. ID
Sane commune latris ACi. tion eAt RACICHS_C
omni exceptione major celtis: non itaque eri-
angulI AC F. pronc jacet, cum criangulo
CiF. A. Comparari pocerie immediute tanguara
eidem aequale. Vrinam Cimiliter transponere
Bosemus criarigulum A C. P, uc Plura commu-
nia vel aequalia cum Trrangulo CIF. A. asse
gueremur, unde constare nobis posser equalica.
eis racio verique intercedens, tactenus tantm
praluca. Circumspichentibus nobis oppido
occurrune linex parallerae, quibus criangutum
AC. I. intercipitur, nempe recta C. L. de recta
HIAB. nam parcem AB. PareI AFF. stam esse
in directum, unamque rectam esse EI AB. Cer.
cum est ex ansulo recto, quem omne quadratum
inctudit, ac e A C. _ ex alterO C AB. deincepe
allisico, qui nobis expresse ditus est, CionF. Prop.
14. L ib. 1.
(Xls. 1d
3
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