Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

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          <pb o="25" file="0161" n="161" rhead="DE CENTRO GRAVIT. SOLID."/>
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            <s xml:id="echoid-s4003" xml:space="preserve">Sint duo priſmata a e, a f, quorum eadem baſis quadri-
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            latera a b c d: </s>
            <s xml:id="echoid-s4004" xml:space="preserve">ſitq; </s>
            <s xml:id="echoid-s4005" xml:space="preserve">priſmatis a e altitudo e g; </s>
            <s xml:id="echoid-s4006" xml:space="preserve">& </s>
            <s xml:id="echoid-s4007" xml:space="preserve">priſmatis
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            a f altitudo f h. </s>
            <s xml:id="echoid-s4008" xml:space="preserve">Dico priſma a e ad priſma a f eam habere
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            proportionem, quam e g ad f h. </s>
            <s xml:id="echoid-s4009" xml:space="preserve">iungatur enim a c: </s>
            <s xml:id="echoid-s4010" xml:space="preserve">& </s>
            <s xml:id="echoid-s4011" xml:space="preserve">in
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            unoquoque priſmate duo priſmata intelligantur, quorum
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            baſes ſint triangu
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              <figure xlink:label="fig-0161-01" xlink:href="fig-0161-01a" number="115">
                <image file="0161-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0161-01"/>
              </figure>
            la a b c, a c d. </s>
            <s xml:id="echoid-s4012" xml:space="preserve">habe
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            bunt duo priſma-
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            te in eadem baſi
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            a b c conſtituta,
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            proportionem eã
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            dem, quam ipſo-
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            rum altitudines e
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            g, f h, exiam de-
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            monſtratis. </s>
            <s xml:id="echoid-s4013" xml:space="preserve">& </s>
            <s xml:id="echoid-s4014" xml:space="preserve">ſi-
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            militer alia duo,
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            quæ ſunt in baſi a
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            c d. </s>
            <s xml:id="echoid-s4015" xml:space="preserve">quare totum priſma a e ad priſma a f eandem propor
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              <note position="right" xlink:label="note-0161-01" xlink:href="note-0161-01a" xml:space="preserve">12. quinti</note>
            tionem habebit, quam altitudo e g ad f h altitudinem.
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            </s>
            <s xml:id="echoid-s4016" xml:space="preserve">Quòd cum priſmata ſint pyramidum tripla, & </s>
            <s xml:id="echoid-s4017" xml:space="preserve">ipſæ pyrami
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            des, quarum eadem eſt baſis quadrilatera, & </s>
            <s xml:id="echoid-s4018" xml:space="preserve">altitudo priſ-
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            matum altitudini æqualis, eam inter ſe proportionem ha-
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            bebunt, quam altitudines.</s>
            <s xml:id="echoid-s4019" xml:space="preserve"/>
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            <s xml:id="echoid-s4020" xml:space="preserve">Si uero priſmata baſes æquales habeant, nõ eaſdem, ſint
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            duo eiuſmodi priſmata a e, f l: </s>
            <s xml:id="echoid-s4021" xml:space="preserve">& </s>
            <s xml:id="echoid-s4022" xml:space="preserve">ſit baſis priſmatis a e qua
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            drilaterum a b c d; </s>
            <s xml:id="echoid-s4023" xml:space="preserve">& </s>
            <s xml:id="echoid-s4024" xml:space="preserve">priſmatis f l quadrilaterum f g h k.
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            </s>
            <s xml:id="echoid-s4025" xml:space="preserve">Dico priſma a e ad priſma f l ita eſſe, ut altitudo illius ad
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            huius altitudinem. </s>
            <s xml:id="echoid-s4026" xml:space="preserve">nam ſi altitudo ſit eadem, intelligãtur
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            duæ pyramides a b c d e, f g h k l. </s>
            <s xml:id="echoid-s4027" xml:space="preserve">quæ ĩter ſe æquales erũt,
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              <note position="right" xlink:label="note-0161-02" xlink:href="note-0161-02a" xml:space="preserve">6. duode
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              cimi</note>
            cum æ quales baſes, & </s>
            <s xml:id="echoid-s4028" xml:space="preserve">altitudinem eandem habeant. </s>
            <s xml:id="echoid-s4029" xml:space="preserve">quare
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            & </s>
            <s xml:id="echoid-s4030" xml:space="preserve">priſmata a e, f l, quæ ſunt harù pyramidum tripla, æqua-
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              <note position="right" xlink:label="note-0161-03" xlink:href="note-0161-03a" xml:space="preserve">15. quintĩ</note>
            lia ſint neceſſe eſt. </s>
            <s xml:id="echoid-s4031" xml:space="preserve">ex quibus perſpicue conſtat propoſitũ.
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            </s>
            <s xml:id="echoid-s4032" xml:space="preserve">Si uero altitudo priſmatis f l ſit maior, à priſmate f l ab-
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            ſcindatur priſma fm, quod æque altum ſit, atq; </s>
            <s xml:id="echoid-s4033" xml:space="preserve">ipſum a e.</s>
            <s xml:id="echoid-s4034" xml:space="preserve"/>
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