 | Pierce Morton - Geometry - 1830 - 584 pages
...as its plane passes through the centre of the sphere, or otherwise. 3. The axis of any circle of the sphere is that diameter of the sphere which is perpendicular to the plane of the circle; and the extremities of the axis are called the poles of the circle. 4. Parallel... | |
 | Mathematics - 1835 - 684 pages
...as its plane passes through the centre of the sphere, or otherwise. 3. The axis of any circle of the sphere is that diameter of the sphere which is perpendicular to the plane of the circle ; and the extremities of the axis are called the poles of the circle. 4. Parallel... | |
 | Horatio Nelson Robinson - Geometry - 1860 - 470 pages
...intercept on the surface. This spherical polygon is called the base of the pyramid. 8. The Axis of a great circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. This diameter is also the axis of all small circles parallel to the great circle.... | |
 | Isaac Todhunter - Spherical trigonometry - 1863 - 182 pages
...the shorter of the two arcs as the arc of a great circle joining the two points. 5. The axis of any circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle ; the extremities of the axis are called the poles of the circle. The poles of... | |
 | J. G - 1878 - 408 pages
...the diameter, which is called the axit of the sphere. The Axis and Poles of a Circle. The axis nf any circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. The extremities of the axis are called the poles of all those circles on the sphere... | |
 | Isaac Todhunter - Spherical trigonometry - 1879 - 176 pages
...the shorter of the two arcs as the arc of a great circle joining the two points. 6. The axis of any circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle ; the extremities of the axis are called the poles of the circle. The polos of... | |
 | Thomas Liddell Ainsley - 1880 - 482 pages
...circles of a sphere have the same radius. All great circles bisect each other. 1 37. The Axis of any circle of a sphere is that diameter of the sphere •which is perpendicular to the plane of the circle. The extremities of the axis are called the poles of the circle. 138. The extremities... | |
 | John Clement Primrose Aldous - Nautical astronomy - 1887 - 70 pages
...Small Circle is the section of the surface of a Sphere made by a plane not passing through the centre. The Axis of a circle of a Sphere is that diameter of the Sphere which is perpendicular to the plane of the circle. The Poles of a circle are the extremities of its axis. A Secondary to a circle... | |
 | William Robert Martin - Nautical astronomy - 1899 - 474 pages
...small circle is the section of the surface of a sphere made by a plane not passing through the centre. The axis of a circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. The poles of a circle are the extremities of its axis. A secondary to a circle... | |
 | Webster Wells - Geometry - 1916 - 328 pages
...equator and of all the ® 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... | |
| |
Axis of a great circle of a sphere is that diameter of the sphere which is perpendicular to the plane of the circle. 
