Quoniam cum ſit vt B F ad F H, ita F H, vel F C ad F I, erit B I aggre-
gatum extremarum B F, F I, poſt B F, F C. Item cum ſit B M ad M L, vt
M L, vel M C ad M I, erit idem BI aggregatum extremarum B M, M I,
poſt B M, M C; ſed aggregatum triangulorum ad F ad triangulum A B C
272[Figure 272]
(iuncta A C) eſt vt aggregatum extremarum poſt B F, F C ad B C, &
118. App.
aggregatum triangulorum ad M ad idem triangulum A B C eſt vt aggrega-
tum extremarum poſt B M, M C ad eandem B C, ſuntque prædicta extre-
marum aggregata inter ſe æqualia, cum vtrinque conficiant eandem B I,
quare, & aggregatum triangulorum A F B, D F C, æquale erit aggregato
triangulorum A M B, N M C. Quod faciendum erat.
gatum extremarum B F, F I, poſt B F, F C. Item cum ſit B M ad M L, vt
M L, vel M C ad M I, erit idem BI aggregatum extremarum B M, M I,
poſt B M, M C; ſed aggregatum triangulorum ad F ad triangulum A B C
tum extremarum poſt B M, M C ad eandem B C, ſuntque prædicta extre-
marum aggregata inter ſe æqualia, cum vtrinque conficiant eandem B I,
quare, & aggregatum triangulorum A F B, D F C, æquale erit aggregato
triangulorum A M B, N M C. Quod faciendum erat.
APPENDICIS
FINIS.
FINIS.