| 单词 | spherical triangle |
| 例句 | Spending long nights in antiaircraft positions watching the skies, he imagined spherical triangles drawn across the sky and worked out their geometry. Friedrich Hirzebruch, Mathematician, Dies 2012-06-11T00:38:08Z Containing or having two right angles; as, a birectangular spherical triangle. Webster's Unabridged Dictionary (2nd 100 Pages) 2012-03-24T02:00:19.387Z Thus we might have a spherical triangle that is concave, with its base 359°, and its other two sides each 90°, the sum of the sides being 539°. The Teaching of Geometry 2011-10-12T02:00:52.133Z The sum of the interior angles of a spherical triangle is always greater than two right angles, and increases with the area. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z The clerestory windows are spherical triangles enclosing three circles with quatrefoil cusps; the form of these windows is somewhat rare, but similar windows are to be seen at Westminster, Hereford, Carlisle, and York. Bell's Cathedrals: The Cathedral Church of Lichfield A Description of Its Fabric and A Brief History of the Espicopal See 2011-08-14T02:00:26.307Z In a spherical triangle the sum of the angles is greater than 180 degrees, and in a triangle drawn on a saddle surface it is less. Gravity, by George Gamow [Special Archive Article] 2011-03-04T13:45:00.433Z Sometimes these windows are very small, being mere quatrefoils or spherical triangles. Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 4 "Cincinnatus" to "Cleruchy" The sum of the angles of a spherical triangle is greater than 180° and less than 540°. The Teaching of Geometry 2011-10-12T02:00:52.133Z For spherical triangles, therefore, all the important propositions 4, 8, 26; 5 and 6; and 18, 19 and 20 will hold good. Encyclopaedia Britannica, 11th Edition, Volume 11, Slice 6 "Geodesy" to "Geometry" 2011-09-19T02:00:10.473Z The spherical triangles PAB, PAC, &c., enable us to do this readily. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" The crypt is lighted by four windows, equal-sided spherical triangles in shape; two look out eastward, one northward beyond the chancel arch, one, correspondingly placed, to the southward. Bell's Cathedrals: Wimborne Minster and Christchurch Priory A Short History of Their Foundation and a Description of Their Buildings In the spherical triangle given on next page, we have given the point A, being the position of the moon in right ascension and declination in the heavens, and considered as terrestrial latitude and longitude. Outlines of a Mechanical Theory of Storms Containing the True Law of Lunar Influence He gave an interesting proposition relating to plane and spherical triangles, their sides being cut by a transversal. The Teaching of Geometry 2011-10-12T02:00:52.133Z This is also easily calculated by the same spherical triangle. Treatise on Light The spherical triangles pAB, pAC, &c., will give us a simple rule. Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 3 "Destructors" to "Diameter" For this purpose we have a right-angled spherical triangle, Z S P, Fig. Scientific American Supplement, No. 360, November 25, 1882 Now it is the same thing with symmetric spherical triangles; we cannot superpose them. The Teaching of Geometry 2011-10-12T02:00:52.133Z |
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