 | Euclid - 1845 - 218 sider
...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. BC NB ' When several angles are at one point B, any one ' of them is expressed by three... | |
 | Euclid, John Playfair - 1846 - 334 sider
...a rectilineal angle, and is meant to comprehend those angles which are formed by the meeting of the other lines than straight lines. A plane angle is...another which " meet together, but are not in the same direction." This definition is omitted here, because that the angles formed by the meeting of curve... | |
 | Euclides - 1846 - 292 sider
...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. NB, When several angles are at one point B, any one of them is expressed by three letters,... | |
 | Euclides - 1847 - 128 sider
...the other an internal inclination. 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. NB — When several angles meet at a A point, each of them is indicated by three letters,... | |
 | Euclides - 1848 - 52 sider
...but not in the same straight line. 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. X. When a straight line standing on another straight line, makes the adjacent angles... | |
 | Charles Richson - 1848 - 98 sider
...ifieans of two long pencils or pen-holders. DEFINITION. — "An angle* is the inclination of two straight lines to one another, which meet together, but are not in the same straight line." 16 EXAMPLE II. OBSERVE — 1. The number of lines drawn to the point of the angle are... | |
 | Euclid, Thomas Tate - 1849 - 120 sider
...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. NB "When several angles are at one point B, anyone of them is expressed by three letters,... | |
 | Sir Henry Edward Landor Thuillier - 1851 - 826 sider
...them lies wholly in that superficies. 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.* When a straight line standing upon another straight line makes the adjacent angles... | |
 | Euclides - 1852 - 152 sider
...plane angle, not rectilineal.] Fig. 1. 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. IX. NB " When several angles are at one point B, any one of them is expressed by three... | |
 | John Drew - 1853 - 386 sider
...great discoveries."* * SJ Hersehel. PAKT III. PRACTICAL ASTRONOMY. DEFINITIONS. 205. 1. AN ANGLE is the inclination of two lines to one another, which meet together, but are not in the same direction. Since the principal part of Practical Astronomy consists in the right measurement of angles,... | |
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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. 
