Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

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            fruſtum pyramidis ſit abſciſſum. </s>
            <s xml:space="preserve">erit ex iis quæ proxime
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            tradidimus, fruſti pyramidis a d centrum grauitatis l. </s>
            <s xml:space="preserve">Quo
              <lb/>
            niam igitur portiones ſpacio o minores ſunt; </s>
            <s xml:space="preserve">habebit cir
              <lb/>
            culus, uel ellipſis a b ad
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            portiones dictas maiorẽ
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            proportionem, quàm n l
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            ad lm. </s>
            <s xml:space="preserve">ſed ut circulus, uel
              <lb/>
            ellipſis a b ad portiones,
              <lb/>
            ita a p b conus, uel coni
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            portio ad ſolidas portio-
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            nes, id quod ſupra demon
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            ſtratum eſt: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">ut circulus
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            uel ellipſis c d ad portio-
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            nes, quæ ipſi inſunt, ita co
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            nus, uel coni portio c p d
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            ad ſolidas ipſius portio-
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            nes. </s>
            <s xml:space="preserve">Quòd cum figuræ in
              <lb/>
            circulis, uel ellipſibus a b
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            c d deſcriptæ ſimiles ſint,
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            erit proportio circuli, uel
              <lb/>
            ellipſis a b ad ſuas portio
              <lb/>
            nes, eadẽ, quæ circuli uel
              <lb/>
            ellipſis c d ad ſuas. </s>
            <s xml:space="preserve">ergo
              <lb/>
            conus, uel coni portio a p
              <lb/>
            b ad portiones ſolidas eã-
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            dem habet proportionẽ,
              <lb/>
            quam conus, uel coni por
              <lb/>
            tio c p d ad ſolidas ipſius
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            portiones. </s>
            <s xml:space="preserve">reliquum igi-
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            tur coni, uel coni portionis fruſtũ, ſcilicet a d ad reliquas
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            portiones ſolidas in ipſo contentas eandem proportionẽ
              <lb/>
            habet, quam conus, uel coni portio a p b ad ſolidas portio
              <lb/>
            nes: </s>
            <s xml:space="preserve">hoc eſt eandem, quam circulus, uel ellipſis a b ad por
              <lb/>
            tiones planas. </s>
            <s xml:space="preserve">quare fruſtum coni, uel coni portionis a d</s>
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