 | Euclides - 1883 - 176 pages
...a measure of the magnitude of the angle. Note. — Euclid defines a plane rectilineal angle as "the inclination of two straight lines to one another,...together, but are not in the same straight line." Here the synonym for angle, "the inclination of two straight lines," has this fault, that when the... | |
 | Stewart W. and co - 1884 - 272 pages
...plane, which meet together, but are not in the same direction. IX. A plane rectilineal angle is the inclination of two straight lines to one another,...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 on another... | |
 | Euclides - 1884 - 182 pages
...plane, which meet together, but are not in the same direction. 9. A plane rectilineal angle is the inclination of two straight lines to one another,...meet together, but are not in the same straight line. Notice three points in which this last definition differs from the one before it. First, the word '... | |
 | Euclides - 1884 - 214 pages
...plane, which meet 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 direction. X. When a straight line, standing on another straight line, makes the adjacent angles equal... | |
 | 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 the adjacent... | |
 | George William Usill - Surveying - 1889 - 306 pages
...angles formed by two straight lines. 3 Plane Rectilineal Angle.— A plane rectilineal angle is the inclination of two straight lines to one another,...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. 4. Perpendicular,... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...the straight line between them lies wholly in that superficies. 9. A -plane rectilineal angle is the inclination of two straight lines to one another,...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. It would be... | |
 | George Irving Hopkins - Geometry, Plane - 1891 - 204 pages
...figure is one whose points and lines all lie in the same plane. 17. "A plane rectilineal angle is the inclination of two straight lines to one another,...together, but are not in the same straight line." — EUCLID. " An angle is a figure formed by two straight lines drawn from the same point." — CHAUVENET.... | |
 | Mines and mineral resources - 1894 - 330 pages
...and is the shortest 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
...bisects the figure,2 which might be readily proved from the axioms. He defines a plane angle as the " inclination of two straight lines to one another,...together, but are not in the same straight line," but leaves the idea of angle magnitude somewhat indefinite by his failure to give a test for equality... | |
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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. 
