 | George Roberts Perkins - Geometry - 1860 - 472 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a rectilineal triangle. HL A. spherical polygon is a portion of the surface of a sphere, terminated by several arcs of great circles. IV. A lune is that portion of the surface of a sphere,... | |
 | Benjamin Greenleaf - Geometry - 1862 - 532 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a plane triangle. 507. A SPHERICAL POLYGON is a portion of the surface of a sphere bounded by several arcs of great circles. 508. A LUNE is a portion of the surface of a sphere comprehended between... | |
 | Benjamin Greenleaf - Geometry - 1862 - 518 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a plane triangle. 507. A SPHERICAL POLYGON is a portion of the surface of a sphere bounded by several arcs of great circles. 508. A LUNE is a portion of the surface of a sphere comprehended between... | |
 | Benjamin Greenleaf - Geometry - 1863 - 504 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a plane triangle. 507. A SPHERICAL POLYGON is a portion of the surface of a sphere bounded by several arcs of great circles. 508. A LUNE is a portion of A the surface of a sphere comprchended between... | |
 | Horatio Nelson Robinson - Geometry - 1868 - 276 pages
...other, of the portions of the surface of a sphere which are bounded by the arcs of its great circles. 2. A Spherical Polygon is a portion of the surface of...sphere bounded by three or more arcs of great circles, called the aides of the potygon. 3. The Angles of a spherical polygon are the angles formed by the... | |
 | Benjamin Greenleaf - Geometry - 1868 - 340 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a plane triangle. 507. A SPHERICAL POLYGON is a portion of the surface of a sphere bounded by several arcs of great circles. 508. A LUNE is a portion of the surface of a sphere comprehended between... | |
 | Benjamin Greenleaf - 1869 - 516 pages
...takes the name of right-angled, isosceles, equilateral, in the same cases as a plane triangle. 507. A SPHERICAL POLYGON is a portion of the surface of a sphere bounded by several arcs of great circles. 508. A LUNE is a portion of the surface of a sphere comprehended between... | |
 | William Chauvenet - Geometry - 1871 - 380 pages
...as a pole, the perpendicular B'C' can be described. SPHERICAL POLYGONS AND PYRAMIDS. 60. Definition. A spherical polygon is a portion of the surface of...bounded by three or more arcs of great circles, as ABCD. Since the planes of all great circles pass through the centre of the sphere, the planes of the sides... | |
 | William Chauvenet - Geometry - 1872 - 382 pages
...as a pole, the perpendicular B'C' can be described. SPHERICAL POLYGONS AND PYRAMIDS. 60. Definition. A spherical polygon is a portion of the surface of...bounded by three or more arcs of great circles, as ABCD. Since the planes of all great circles pass through the centre of the sphere, the planes of the sides... | |
 | Charles Davies - Geometry - 1872 - 464 pages
...angle included between the planes of its sides. Spherical angles may be acute, right, or obtuse. 2. A SPHERICAL POLYGON is a portion of the surface of...sphere bounded by three or more arcs of great circles. The bounding arcs are called sides of the polygon, and the points in which the sides meet, are called... | |
| |
A spherical polygon is a portion of the surface of a sphere bounded by three or more arcs of great circles. The... 
