Stelliola, Niccol� Antonio, De gli elementi mechanici, 1597

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    <archimedes>
      <text>
        <body>
          <chap id="N10854">
            <pb xlink:href="041/01/028.jpg" pagenum="27"/>
            <figure id="id.041.01.028.1.jpg" xlink:href="041/01/028/1.jpg" number="25"/>
            <p id="N10871" type="head">
              <s id="N10873">
                <emph type="italics"/>
              Dimoſtratione.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N10879" type="main">
              <s id="N1087B">
                <emph type="italics"/>
              Sia la linea orizontale A B, la leua ſopra di eſſa inalzata o deſpreſ­
                <lb/>
              ſa A C. </s>
              <s>il ponto fuori della leua E: da cui ſi tirino due perpendicolari
                <lb/>
              l'vna alla leua DE, l'altra all'orizonte D F, che ſeghi la leua in F, &
                <lb/>
              la linea orizontale in G. </s>
              <s id="N10885">dico che l'angolo fatto dalle due D E, D F
                <lb/>
              ſia vguale all'angolo fatto, dalle due A B, A C: ſi moſtra: percioche
                <lb/>
              le due A C, D G, ſi ſegano nel ponto F, ſaranno l'angoli A F G, et D
                <lb/>
              F E, d'incontro vguali: e gli angoli ad E & G ſono retti: dunque il tri­
                <lb/>
              angolo D F E, è equiangolo al triangolo A F G, e l'angolo F D E, v­
                <lb/>
              guale a l'angolo F A G. </s>
              <s id="N10891">Il che ſi hauea da mòſtrare.
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N10895" type="head">
              <s id="N10897">
                <emph type="italics"/>
              Appendice,
                <emph.end type="italics"/>
              </s>
            </p>
            <p id="N1089D" type="main">
              <s id="N1089F">Et è manifeſto che eſſendo detto ponto di ſopra la li
                <lb/>
              nea della leua inalzata, e di ſotto della leua baſſata; ſe­
                <lb/>
              cherà detta linea in ponto più dalla poſſanza lontano. </s>
              <lb/>
              <s id="N108A6">e per
                <expan abbr="cõtrario">contrario</expan>
              pigliandoſi detto ponto, o ſotto dell'alza­
                <lb/>
              tà, o ſopra della baſſata, ſegherà in ponti più à detta pos­
                <lb/>
              ſanza vicini. </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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