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abscisses altitude angle axes axis azimuth base centre chord circumference co-arc complement conjugate cosine course curve declination departure dial diameter diff difference of latitude difference of longitude distance divided draw drawn ecliptic ellipse equal equinoctial ExAMPLE feet figure find the area frustum given height Hence horizon hour angle hour lines hyperbola hypotenuse inches intersection latit length measure meridian middle latitude miles multiply Nore oblique circle opposite ordinate P R O B L E M parabola parallel sailing parallelogram parallels of latitude perpendicular plane plane sailing pole primitive Prob PROBLEM projection Prop proportional quadrant radius rectangle right ascension right circle right line right-angled triangle rule secant segment side sine solidity sphere spherical triangle square star station stile subtract sun's tang tangent Theorem transverse trapezium triangle ABC
Página 19 - As the base or sum of the segments Is to the sum of the other two sides, So is the difference of those sides To the difference of the segments of the base.
Página 91 - A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within called the center.
Página 346 - The conjugate to any diameter is the line drawn through the centre, and parallel to the tangent of the curve at the vertex of the diameter. So...
Página 26 - But if the hypothenuse be made radius -, then each leg "will represent the sine of its opposite angle ; namely, the leg AB the sine of the arc AE or angle c, and the leg BC the sine of the arc CD or angle A.
Página 91 - The axis of a solid is a line drawn from the middle of one end to the middle of the opposite end ; as between the opposite ends of a prism.
Página 91 - The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed.
Página 138 - Between these, in a right line, stands an ancient statue, the head whereof is 97 feet from the summit of the higher, and 86 feet from the top of the lower column, and the distance between the...
Página 223 - All the interior angles of any rectilineal figure, together with four right angles, are equal to twice as many right angles as the figure has sides.