## Elements of plane and spherical trigonometry |

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altitude arc corresponding arithm base chains chord circle circumference Co-tangent column headed complement computed correction cosecant cosine course cubio diameter diff difference of latitude difference of longitude Dist divided draw equal equator fifth figure find the angles find the area find the Logarithm fraction frustum Geometry given number Given the angle half height Hence horizontal inches latitude and departure length logarithmic sine longitude measured meridian middle latitude miles minutes Multiply natural number natural sine number of degrees number of seconds parallel parallel sailing perpendicular plane sailing Prop proportional quadrant radius Required the logarithmic right-angled spherical triangle right-angled triangle Rule Sandy Hook scale secant side AC slant height spherical triangle ABC Spherical Trigonometry station subtract tabular difference tabular number tang Tangent telescope theodolite vernier vertical Vulgar Fraction zoids