 The axis of a circle of a sphere is the diameter of the sphere which is perpendicular to the plane of the circle. The ends of the axis are called the poles of the circle.  Solid Geometry - Page 439by William Betz, Harrison Emmett Webb - 1916 - 178 pagesFull view - About this book
 | Horace Wilmer Marsh, Annie Griswold Fordyce Marsh - Mathematics - 1914 - 270 pages
...to the surface of the unit of area. An Axiom is a self-evident, undemonstrable truth. The Axis of a Circle of a Sphere is the diameter of the sphere which...perpendicular to the plane of the circle. The poles are the extremities of the axis. The Axis of a Cone is a line from the vertex to the center of the... | |
 | William Betz - Geometry - 1916 - 536 pages
...center. The surface of a sphere is called a spherical surface. The radius of a sphere ^^^ "'-feiiv joins any point in the surface to the center, and...about any given point as a center, and with a radius eyual to any given line. 730. Radii of the same sphere are equal. 731. Diameters of the same sphere... | |
 | John Charles Stone, James Franklin Millis - Geometry, Solid - 1916 - 196 pages
...that the apparent daily path of a star is a circle. 436. Axis and poles of a circle. — The axis of a circle of a sphere is the diameter of the sphere which...perpendicular to the plane of the circle. The poles of a circle of a sphere are the extremities of the axis of the circle. Thus, if AB is the. diameter of a... | |
 | Webster Wells - Geometry - 1916 - 328 pages
...® parallel to the equator. Ex. 7. Four. Ex. 8. Eight. Ex. 9. The axis of any 0 of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. But that diameter will also be perpendicular to every plane parallel to the plane of the given circle... | |
 | Claude Irwin Palmer, Daniel Pomeroy Taylor - Geometry - 1918 - 460 pages
...not passing through its center. The axis of a circle of a sphere is the diameter of the sphere that is perpendicular to the plane of the circle. The poles of a circle of a sphere are the extremities of the axis of the circle. In the figure, AMB is a great circle,... | |
 | Claude Irwin Palmer - Geometry, Solid - 1918 - 192 pages
...not passing through its center. The axis of a circle of a sphere is the diameter of the sphere that is perpendicular to the plane of the circle. The poles of a circle of a sphere are the extremities of the axis of the circle. In the figure, AMB is a great circle,... | |
 | James Atkins Bullard, Arthur Kiernan - Trigonometry - 1922 - 252 pages
...plane which does not pass through the center of the sphere. 3. The poles of a circle are the ends of the diameter of the sphere which is perpendicular to the plane of the circle. 'The distance along a great circle arc from the circle to its nearer pole is called the polar distance of... | |
 | Walter Burton Ford, Charles Ammermann - Geometry, Modern - 1923 - 406 pages
...not pass through the center is called a small circle of the sphere, as AB, Fig. 248. The axis of a circle of a sphere is the diameter of the sphere which...perpendicular to the plane of the circle. The poles of a circle of a sphere are the extremities of the axis of the circle. 346. Corollary 1. Through any three... | |
 | David Clark - Surveying - 1923 - 316 pages
...passing through the centre. Thus BCD is a small circle. (2) The axis of any circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle, the ends of the axis being called the poles of the circle. Thus, P and P' are the poles of the great circle... | |
 | Sir David Wilson Barker, William Allingham - Navigation - 1923 - 190 pages
...surface made by a plane which does not pass through the centre. Axis of a circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. Poles are the extremities of the axis. A secondary to a circle is a great circle passing through its... | |
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