Geometria pura elementare, per S. Pincherle.

130 Geometria solida. ed aggiungendo di comune gli angoli eguali ASD, ASC, viene ASB - CSB + ASC, c. d. d. TEOREMA 2. In qualunque angolo poliedro convesso la somina delle faccie e. minore di quattro retti. A Fig. 103. a) Sia dapprima langolo triedro SABC. Si prolunghi la costola SA in SD; si forma un nuovo triedro SDCB in cui per il teorema precedente si ha BSC <BSD -- CSD; ma (1) BSD:= 2R - BSA, CSD = 2R - CSA, (1) ~ I, teor. 3.

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Title
Geometria pura elementare, per S. Pincherle.
Author
Pincherle, Salvatore, 1853-1936.
Canvas
Page 112
Publication
Milano,: U. Hoepli,
1895.
Subject terms
Geometry

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"Geometria pura elementare, per S. Pincherle." In the digital collection University of Michigan Historical Math Collection. https://name.umdl.umich.edu/acv2273.0001.001. University of Michigan Library Digital Collections. Accessed April 30, 2025.
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