Valerio, Luca, De centro gravitatis solidorvm libri tres

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          <chap>
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                <pb xlink:href="043/01/060.jpg" pagenum="52"/>
              lis æqualibus, & ſimilibus BGC, DGE, & pyramis
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              BCGH, pyramidi GDEK congruet, & puncto K, pun­
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              ctum H: & eadem ratione
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              pyramis ABCG, pyra­
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              midi DEFG. congruente
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              igitur pyramide ABCG,
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              pyramidi DEFG, & pun­
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              ctum K, congruet puncto
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              H. ſed H, eſt centrum gra
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              uitatis pyramidis ABCG:
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              igitur K, erit centrum gra
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              uitatis pyramidis DEFG:
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              ſed eſt GK, æqualis ip­
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              ſi GH; vtriufque igitur
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              pyramidis ABCG, DE­
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              FG, ſimul centrum grauitatis erit K; Quod demonſtran­
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              dum erat. </s>
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            <figure id="id.043.01.060.1.jpg" xlink:href="043/01/060/1.jpg" number="36"/>
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              PROPOSITIO XXV.
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              <s>Omnis parallelepipedi centrum grauitatis eſt in
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              medio axis. </s>
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              <s>Sit parallelepipedum ABCDEFGH, cuius axis
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              LM, isque ſectus bifariam in puncto K. </s>
              <s>Dico K eſse
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              centrum grauitatis parallelepipedi ABCDEFGH.
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              iungantur enim diametri AG, BH, CE, DF, quæ
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              omnes neceſsario tranſibunt per punctum K, & in eo
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              puncto bifariam diuidentur. </s>
              <s>Iunctis igitur BD, FH:
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              quoniam triangulum EFK, ſimile eſt, & æquale trian­
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              gulo CDK, propter latera circa æquales angulos ad </s>
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        </body>
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