Clavius, Christoph
,
Geometria practica
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GEOMETR. PRACT.
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duplicatæ proportionis, quam videlicet circulus, vel figura ad minorem habet
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Vt ſi diameter vnius circuli ſit 56. </
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<
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<
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diameter 14.</
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<
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tiens 4. </
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<
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<
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culi ad minorem. </
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<
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xml:space
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lem, ſimiliter que poſitam, ſi latera homologa ſint 56. </
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<
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<
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gnitæ ſint: </
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latera homologa ſint nota: </
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am, cuius circulus omnibus circulis propoſitis æqualis ſit. </
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reperire, cuius figura ſimilis, ſimiliterque poſita æqualis ſit omnibus
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propoſitis figuris.</
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<
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diametri, vel circumferentiæ, aut latera homologa
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in ſe, & </
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huius ſummæ erit diameter, circumferentiaue, aut latus homologum quæſitum.
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</
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<
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homologa ſimilium figurarum, ſimiliter que poſitarum, 84. </
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tiplicentur, gignentur numeri 7056. </
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go quadrata huius ſummæ 85. </
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<
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homologum, quod quæritur: </
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<
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tia eſt 85. </
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lis ſit quatuor circulis, aut figuris propoſitis. </
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85. </
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<
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<
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de quam quadrata circumferẽtiarum; </
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<
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portionales. </
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laterum homologorum, propterea quod tam quadrata, quam figuræ
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duplicatam proportionem laterum: </
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<
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circumferentiauẽ 85. </
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<
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tiæue 84. </
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<
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figuris, quarum lateta 84. </
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<
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<
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<
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<
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denique librum hunc quartum duobus problematibus terminare,
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quæ ab Archimede Syracuſano accutiſsimè inuenta ſunt, ac demonſtrata. </
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<
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eſt de area Ellipſis; </
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maior diameter BD, & </
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HI, media proportionalis inter BD, & </
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<
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pti area in quiratur, per ea, quæ c. </
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<
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