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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 129, page id 79876922X:0617
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Ide
N CDB
rto
bust
aer se
senis.
CaB.
rarion
ee 1t
aD.
Wice
ex se
NIum
1. pet
B, 8
ta
unt
r
PF DIVERCENTIS.
Productum VIII.
rectansulis Triangulis, Guadra-
cum hypocenulae, est aequale
Euadratis laterum (mIm. Per.
endiculi de baleos)
Demonstratio mechanica.
Sit latus unum 3. alterum q. hypotenu-
(a5, Ouadrata laterum lunc 9. d 16. = 25. &
tancum est Ouadratum lixpotenulae solius.
Demonstrationem Archimetricam de Ceome-
cricam dabit Archilosiltica. Vid. F16. 32.
CAPUT V.
De Collineationibus RC
etarum Circuli.
Productum I.
Si Diameter BF D Tubrenlam AC.
bitariam lecats crectitudinem in
ter le reciproeant utraque.
Demonstratio.
Cum enim A F = FC. Per hyp. _ AF = C F
ver Dict. 26. XF F. utrique Triansulocommu-
nis AE, per Sructuram; Dirergentia R F A = erie
Diversentiae FFC. per C ond. 6. PFod. G. Cidp. 4u
id. F
e
 33