Apollonius <Pergaeus>, Apollonii Pergaei Conicorvm Lib. V. VI. VII. paraphraste Abalphato Asphahanensi : nunc primum editi ; additvs in calce Archimedis assvmptorvm liber, ex codibvs arabicis mss Abrahamus Ecchellensis Maronita latinos reddidit, Jo. Alfonsvs Borellvs curam in geometricis versione contulit & [et] notas vberiores in vniuersum opus adiecit

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          <head xml:id="echoid-head207" xml:space="preserve">APOLLONII PERGAEI</head>
          <head xml:id="echoid-head208" xml:space="preserve">CONICORVM LIB VI.</head>
          <head xml:id="echoid-head209" xml:space="preserve">DEFINITIONES.</head>
          <head xml:id="echoid-head210" xml:space="preserve">I.</head>
          <p>
            <s xml:id="echoid-s5217" xml:space="preserve">SEctiones ÆQVALES ſunt, quæ ad inuicem ſu-
              <lb/>
            perpoſitæ ſibi mutuò congruunt.</s>
            <s xml:id="echoid-s5218" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div501" type="section" level="1" n="159">
          <head xml:id="echoid-head211" xml:space="preserve">II.</head>
          <p>
            <s xml:id="echoid-s5219" xml:space="preserve">SIMILES verò ſunt, in quibus omnes po-
              <lb/>
            tentiales ad axium abſciſſas vtrobique ſunt in
              <lb/>
            ijſdem rationibus, tum abſciſſæ ad abſciſſas.</s>
            <s xml:id="echoid-s5220" xml:space="preserve"/>
          </p>
        </div>
        <div xml:id="echoid-div502" type="section" level="1" n="160">
          <head xml:id="echoid-head212" xml:space="preserve">III.</head>
          <p>
            <s xml:id="echoid-s5221" xml:space="preserve">Et linea, quæ ſubtendit ſegmentum circumferentiæ circuli,
              <lb/>
            aut ſectionis coni vocatur BASIS illius ſegmenti.</s>
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          </p>
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        <div xml:id="echoid-div503" type="section" level="1" n="161">
          <head xml:id="echoid-head213" xml:space="preserve">IV.</head>
          <p>
            <s xml:id="echoid-s5223" xml:space="preserve">Et linea, quæ bifariam diuidit ordinationes æquidiſtantes baſi
              <lb/>
            illius, vocatur DIAMETER illius ſegmenti.</s>
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        <div xml:id="echoid-div504" type="section" level="1" n="162">
          <head xml:id="echoid-head214" xml:space="preserve">V.</head>
          <p>
            <s xml:id="echoid-s5225" xml:space="preserve">Et eius terminus, qui eſt ad ſectionem, VERTEX ſegmenti.</s>
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        <div xml:id="echoid-div505" type="section" level="1" n="163">
          <head xml:id="echoid-head215" xml:space="preserve">VI.</head>
          <p>
            <s xml:id="echoid-s5227" xml:space="preserve">Et SEGMENTA ÆQVALIA ſunt, quæ ſuperpoſita ſibi mu-
              <lb/>
            tuò congruunt.</s>
            <s xml:id="echoid-s5228" xml:space="preserve"/>
          </p>
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        <div xml:id="echoid-div506" type="section" level="1" n="164">
          <head xml:id="echoid-head216" xml:space="preserve">VII.</head>
          <p>
            <s xml:id="echoid-s5229" xml:space="preserve">Et SIMILIA ſunt, quorum baſes cum diametris æquales an-
              <lb/>
            gulos continent, & </s>
            <s xml:id="echoid-s5230" xml:space="preserve">in eorum ſingulis ductæ lineæ baſi parallelæ
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            numero æquales ad abſciſſas diametrorum ſunt in ijſdem ratio-
              <lb/>
            nibus tum abſciſsæ ad abſciſsas.</s>
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