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# Title: [Johannis Wallisii SS. Th. D. Geometriae Professoris Saviliani Oxoniae, Tractatus Duo] Johannis Wallisii SS. Th. D. Geometriæ Professoris Saviliani Oxoniæ, Tractatus Duo (shelfmark Leibn. Marg. 103)
# Folio 53, page id 85138403X:0069
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DE CTCFOTOL
48. Inceori rero Prismatis, eidem B cC crilineo insillentis,
ex punctoC suspen, momentum respectu ejusdem B rectae, SiC
habetur. Prismaris hujus basis est ipsum crilineum BCC = =D Y
D
(Per = 20) quae in alcicudinem ZD ducta, dat  D= P
FD prismatis maenitudinem, quae in distanciam b C = =D ducta,
dac 3 = D P -  D Prismatis ex puncto C suspenli momentum
respectu rectae LD,
49. Racio igitur momenei Porrionis prismatis in suo fieu, ad
monenrum prisnatis integri ex puncto C Tuspenti, respectue
jusdem Bb recta, CAt (per 47, 48,) ue,dD. P  D= ad; ZD P
un 16 ; hoc Cct, uE 3 P = 4 D ad 9 P = +B D. (7UIX FaTIO ∞ 25
proxonitur inveltiganda.
50. Flanc aurem racionem sic inventam, eandem eRe arque ra-
cionem omnium Z. V Ag. Tc. in qa 2 respectire ductorum, ad eas-
dem omnes QV in quidrarum recta CA; jam supra oltentum
Cs = 25. ACOIHeS Z V, hoc est crilineum CZ AF, hoc est
DP = 2D (Per = 1O) in C A = 2D dusta, danE2 D= P = qD2
prismaris magnicudinem; quae irerum in 2D diltantiam ducta,
dac 4 D P=8 D= monentum dicti prismatis incegri crilineo
C. Z AF Ag. 20. insiltencis, ex puncto A suspenti, respectu rectx
C C.
SF. Adeoque (PrOpter rationem 3 P - 4 D ad ) P = 28D, =
43 invencam) eric 3P - 4D
OP - +8D in 4D: P = 8 D, hoc est
72P - 16D D, momentum exposicxe porcionis prismatis crilineo
CZ A F insistenis, in SuO Situ, respectu C C rect; hoc est, Fa-
ctu ex omnibus Z. V in 4 a respectire: Et consequenter (divi-
dendoper + D) erit 3-
a
D2, hoc eAt =D . P = FD, Factu
ex eisdem omnibus 2. V in respectire ductis. Quod  22,
25. Sulcepimus octendendum.
52. Ouod autem omnes
a D:
V: D= L a; EIDE ad DC
cories Cumptum, ue x ad 5, (quod  20 probandum sulcepimus,)
sic octendicus, ex principiis noltrae Arithmeticae Insinicorum. In.
Finica