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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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a
DE PROPORTIONE
inter se se habent ratione arcarum; utr
bases ratione loncitudinis.
Ouia Cunc Dimidia parallelogrammorum
calium.
COndict. TI.
Parallelorramma. Triancula) quorum a
quales sunt bases, ita se habent, ut al-
citudines.
Condict. III.
Prismata aque alta habent se ratione Ca-
pacitatis, ut bases ratione arearum su
arum, es vicissim.
Condict. IV.
pyramides es Coni, ratione Capacitatis se
babent, ut bases ratione arearum, (5
vicissim. Fig. 44.
Produetum II.
In Triangulo parallela balu crura
sccat proportionaliter, d vicis
Tim.
Demonstratio FiG. 45.
Cum Friangul DEB = DF CI. per PrOd. 7.
Ciap. 4. erit Priangulum ADF. DBF:: ADF.
Ei. C. D. ut eadem ad cadlem. Acqui Trianeu.
lum ADE. DBE: a AD. DB. de Triangulum
ADdE.