. Trigonometria. 76 <iAs the whole fixe,To the [me of the angle given : Ingonometria Brkannica. The terms of proportion. ?5 Sothe of the given leg, < . S iTo the fine cornel, of the angle inquired. Axiom I. ^nap. « Illufiration Arithmetical. 9-973* As the whole fine F C 90To the fine F I the fine HC TothefincHG 60 9-9l7?lo65 Complement is G D 3c, the mcafure of the angle inquired. P R O B L. 12. j A* angle and lerofffiK thereunto given, to find the other angle. If it be%oL rvhcthrr ii^e acmeor obtufe, or whether the Mypotennfa or
. Trigonometria. 76 <iAs the whole fixe,To the [me of the angle given : Ingonometria Brkannica. The terms of proportion. ?5 Sothe of the given leg, < . S iTo the fine cornel, of the angle inquired. Axiom I. ^nap. « Illufiration Arithmetical. 9-973* As the whole fine F C 90To the fine F I the fine HC TothefincHG 60 9-9l7?lo65 Complement is G D 3c, the mcafure of the angle inquired. P R O B L. 12. j A* angle and lerofffiK thereunto given, to find the other angle. If it be%oL rvhcthrr ii^e acmeor obtufe, or whether the Mypotennfa or the other leg, be more or leffe then * t In the rectangular triangle A B C, the angle A C B is inqui. The given .AngleBAC 30 LegBC terms of proportion. ►df* As the fine leg given,o jTo the fine compl. of the angle given:o S So is the Radius, S;LTo the fine of the angle inquired. Axiom I. Chap. Arithmetical. As the fine HC the fine H G 6 o So the whole fine F C 90To the fine F ° 9-9?7^3°6$ 3
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Keywords: ., bookcentury1600, bookdecade1650, bookidtrigonometri, bookyear1658