| Robert Simson - Geometry - 1845 - 199 pages
...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... | |
| John Playfair - Euclid's Elements - 1846 - 317 pages
...meeting of the other lines than straight lines. A plane angle is said to be "the inclination of two **lines to one 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... | |
| Euclides - 1846
...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... | |
| Euclides - 1847
...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... | |
| Charles Richson - 1848
...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... | |
| Euclides - 1848
...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... | |
| Euclides - 1849
...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... | |
| Sir Henry Edward Landor Thuillier - Surveying - 1851 - 718 pages
...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
...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... | |
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