Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo
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            fruſtum pyramidis ſit abſciſſum. </s>
            <s xml:id="echoid-s4671" xml:space="preserve">erit ex iis quæ proxime
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            tradidimus, fruſti pyramidis a d centrum grauitatis l. </s>
            <s xml:id="echoid-s4672" xml:space="preserve">Quo
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            niam igitur portiones ſpacio o minores ſunt; </s>
            <s xml:id="echoid-s4673" xml:space="preserve">habebit cir
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            culus, uel ellipſis a b ad
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              <figure xlink:label="fig-0186-01" xlink:href="fig-0186-01a" number="137">
                <image file="0186-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0186-01"/>
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            portiones dictas maiorẽ
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            proportionem, quàm n l
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            ad lm. </s>
            <s xml:id="echoid-s4674" xml:space="preserve">ſed ut circulus, uel
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            ellipſis a b ad portiones,
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            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:id="echoid-s4675" xml:space="preserve">& </s>
            <s xml:id="echoid-s4676" xml:space="preserve">ut circulus
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            uel ellipſis c d ad portio-
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              <note position="left" xlink:label="note-0186-01" xlink:href="note-0186-01a" xml:space="preserve">22. huius</note>
            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:id="echoid-s4677" xml:space="preserve">Quòd cum figuræ in
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            circulis, uel ellipſibus a b
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            c d deſcriptæ ſimiles ſint,
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            erit proportio circuli, uel
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            ellipſis a b ad ſuas portio
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            nes, eadẽ, quæ circuli uel
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            ellipſis c d ad ſuas. </s>
            <s xml:id="echoid-s4678" xml:space="preserve">ergo
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            conus, uel coni portio a p
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            b ad portiones ſolidas eã-
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            dem habet proportionẽ,
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            quam conus, uel coni por
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            tio c p d ad ſolidas ipſius
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            portiones. </s>
            <s xml:id="echoid-s4679" xml:space="preserve">reliquum igi-
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              <note position="left" xlink:label="note-0186-02" xlink:href="note-0186-02a" xml:space="preserve">19. quinti</note>
            tur coni, uel coni portionis fruſtũ, ſcilicet a d ad reliquas
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            portiones ſolidas in ipſo contentas eandem proportionẽ
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            habet, quam conus, uel coni portio a p b ad ſolidas portio
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            nes: </s>
            <s xml:id="echoid-s4680" xml:space="preserve">hoc eſt eandem, quam circulus, uel ellipſis a b ad por
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            tiones planas. </s>
            <s xml:id="echoid-s4681" xml:space="preserve">quare fruſtum coni, uel coni portionis a </s>
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