 | Daniel Cresswell - 1816 - 352 Seiten
...(75.) COR. In the same manner, it may be shewn, that the aggregate of the sides of a spherical polygon, is less than the circumference of a great circle of the sphere, if the polygon be bounded by arches of great circles, each of which is less than the semi-circumference... | |
 | Robert Woodhouse - 1819 - 470 Seiten
...angle, as AC p *, is less than the two others AC q, pCq; .•• A p is less than Aq +pq. PROP. III. The sum of the three sides of a spherical triangle is less than the circumference of a great circle (2тг). Let ACB be the spherical triangle ; then, CB < CD + BD J> by the former Proposition, and AC... | |
 | Adrien Marie Legendre - 1822 - 394 Seiten
...is itself the shortest distance between its two extremities. PROPOSITION IV. THEOREM. The sum of all the three sides of a spherical triangle is less than the circumference of a great circle. Let ABC be any spherical triangle ; produce the sides AB, AC till they meet again in D. The arcs ABD,... | |
 | Adrien Marie Legendre - 1825 - 276 Seiten
...therefore this line is itself the shortest that can be drawn between its extremities. THEOREM. 461 . The ,sum of the three sides of a spherical triangle...is less than the circumference of a great circle, Fig. 224. Demonstration. Let ABC (fig. 224) be any spherical triangle ; produce the sides AB, AC, till... | |
 | Adrien Marie Legendre, John Farrar - 1825 - 280 Seiten
...therefore this line is itself the shortest that can be drawn between its extremities. THEOREM. 461. The sum of the three sides of a spherical triangle is less than the circumference of a great circle. Kg. 224. Demonstration. Let ABC (fig. 224) be any spherical triangle ; produce the sides AB, AC, till... | |
 | Adrien Marie Legendre - 1825 - 570 Seiten
...therefore this line is itself the shortest that can be drawn between its extremities. THEOREM. . * 461. The sum of the three sides of a spherical triangle is less than the circumference of a great circle. Fig. 524. Demonstration. Let ABC (Jig. 224) be any spherical triangle ; produce the sides AB, AC, till... | |
 | Dionysius Lardner - 1828 - 434 Seiten
...difference of any two sides of, a spherical triangle is less than the third side. PROP. XLVII. (129.) The sum of the three sides of a spherical triangle is less than the circumference of a great circle. For let any two of the sides a, b, be produced through the third side c until they meet again. The... | |
 | Adrien Marie Legendre - 1830 - 344 Seiten
...ANB ; hence this arc is itself the shortest distance between its two extremities. THEOREM. • 461 . The sum of the three sides of a spherical triangle is less tha n the circumference of a great circle. Let ABC be any spherical triangle ; produce the sides AB,... | |
 | 1832 - 636 Seiten
...20), that any two angles forming such a solid angle must be together greater than the third. (10.) The sum of the three sides of a spherical triangle is less than the circumference of a great circle. For let any two of the sides a, b, be produced through the third side c until they meet again. The... | |
 | John Radford Young - 1833 - 286 Seiten
...B'OC', it follows that A'OD + B'OD = A' OB' < A'OC' + B'OC' ... AB < AC + CB. (39.) The sum of all the three sides of a spherical triangle is less than the circumference of a great circle. Let ABC be any spherical triangle; produce the sides AB, AC, till they meet again in D, then the arcs... | |
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The sum of the three sides of a spherical triangle is less than the circumference of a great circle. Let ABC be any spherical triangle; produce the sides AB, AU, till they meet again in D. 
