ما يقوله الناس - كتابة مراجعة
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altitude Answer base called Cape centre circle Coast column compass computed contained correction corresponding Cosec Cosine Cotang course declination departure difference Difference of Latitude Dist distance drawn England equal equator Examples figure given greater Greenwich half Hence horizontal hour Indian Island Isles latitude less logarithm longitude mean measure meet meridian middle miles moon nearly noon object observed opposite Pacific Ocean parallax parallel passing perpendicular plane pole Problem produced proportion quantity radius rectangle remainder right angles right ascension sail Secant ship sides sine squares star subtract Suvers Table taken tangent Theo Theorem triangle true Vers
الصفحة 18 - LET it be granted that a straight line may be drawn from any one point to any other point.
الصفحة 86 - III.), is a circle. If the plane pass through the centre, then, as every point in the surface of the sphere is equidistant from its centre, the section is a plane figure, every point of whose periphery is equidistant from a certain point within it, and the figure is therefore a circle. But if the plane do not pass through...
الصفحة 26 - Therefore all the interior angles of the figure, together with four right angles, are equal to twice as many right angles as the figure has sides.
الصفحة 114 - TO THEIR DIFFERENCE ; So IS THE TANGENT OF HALF THE SUM OF THE OPPOSITE ANGLES', To THE TANGENT OF HALF THEIR DIFFERENCE.
الصفحة 63 - If from a point without a circle two straight lines be drawn, one of which...
الصفحة 147 - Mathematical o>jgraphy.) the arc of the equator, intercepted between the first meridian...
الصفحة 64 - If from any point without a circle straight lines be drawn touching it, the angle contained by the tangents is double the angle contained by the straight line joining the points of contact and the diameter drawn through one of them.
الصفحة 139 - Given the vertical angle, the difference of the two sides containing it, and the difference of the segments of the base made by a perpendicular from the vertex ; construct the triangle.