uc, putà3 3 &, defcribatur circulus fecans perpendicularem 3 3 Kin puncto 49 , redam 33 A in pundo 3 8 , & redain 3 ^34 in pundo 34 v eritque arcus 49 34 quadrans ; &c rec-tiE33 49,33B,33 38,6*: 33 34 crunt xquales, Scd,quod prarcipuum efl:, demiffis in rcdam 3 3 49 produc-tam fi fit… … A a iij. s 90 DeResolutione 7£cl.uat i onu m.ex lege rcfradionum quam undecimo exemplo fuprà ex-pofuimus, fore ut il radius incidencix fit 36 33 38 A»tune radius refradionis fit 336,6,: vicilîlm 11 radius in-cidentiîe fit B 3 3 , tune radius refradionis fit 3 3 3 6 : hocautem fie demonftramus.…
Geometry · Mathematics
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