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Arithmetica Logarithimica (1624)

Briggs, Henry · leaf 63

An illustration from Arithmetica Logarithimica, 1624, leaf 63
min quolibet triangulo ABC;duo latera AC, C B, media proportiona-lia,inter C D pel pendicularem:)& C E dia-metrum circuli circumfcripti. Quia an-guli D AC BE C aquantur per 22.p.2.1ib. 6c 14p.i.lib.Eucl. & anguli CD B,C B E redti. & idcirco DC A, B C E reli-qui aequales: & triangula… … prop. >C\<4.13 Logarithmus) C B. 20 Logarithmus2l666666 CcE, 216666666666 11139433523 13010299957ill3357921019 fumma omnium. CE. diameter 21 j. videpaginam 37.de compl.arith. Si angulum quemlibet fcire velimus. auferatur latus eidem oppoutume femiperimetro: reliquum erit teg-mentum…

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