 | Stewart W. and co - 1884 - 272 pages
...together, but are not in the same direction. IX. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. An angle is named from three or one letters, as ABC or B. X. When a straight line standing... | |
 | American periodicals - 1884 - 862 pages
...rectilineal angle [dihedral angle] is the inclination of two straight lines [planes through the eye] to one another which meet together but are not in the same straight line [plane]. X. When a straight line [plane] standing on another straight line [plane] makes... | |
 | George William Usill - Surveying - 1889 - 306 pages
...two straight lines. 3 Plane Rectilineal Angle.— A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Note. — When an angle is simply spoken of, a plane rectilineal angle is always meant.... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...between them lies wholly in that superficies. 9. A -plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. It is pointed out in the Syllabus that the term angle is incapable of real definition.... | |
 | George Irving Hopkins - 1891 - 210 pages
...points and lines all lie in the same plane. 17. "A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line." —EUCLID. " An angle is a figure formed by two straight lines drawn from the same... | |
 | Mines and mineral resources - 1894 - 330 pages
...distance between any two points, as AB, Fig. i. A Plane Rectilineal Angle is the inclination of two straight *^^ lines to one another, which ^^ meet together, but are not in A rig.^. the same straight line, as A, Fig. 2. When several angles are at one point, as A, Fig. 3,... | |
 | Florian Cajori - Mathematics - 1896 - 324 pages
...which might be readily proved from the axioms. He defines a plane angle as the " inclination of two straight lines to one another, which meet together, but are not in the same straight line," but leaves the idea of angle magnitude somewhat indefinite by his failure to give a... | |
 | Daniel Alexander Murray - Plane trigonometry - 1899 - 350 pages
...books on plane geometry a plane angle is defined in various ways, namely, as the inclination of two lines to one another, which meet together, but are not in the same direction ; or, as the figure formed by two straight lines drawn from the same point ; or, as the amount... | |
 | Euclid, Henry Sinclair Hall, Frederick Haller Stevens - Euclid's Elements - 1900 - 330 pages
...those formed by straight lines. See Del . 9. ] 9. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. The point at which the straight lines meet is called the vertex of the angle, and the... | |
 | Euclid - Euclid's Elements - 1904 - 488 pages
...those formed by straight lines. See Def. 9.] 9. A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. The point at which the straight lines meet is called the vertex of the angle, and the... | |
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A plane rectilineal angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. 
