| Euclides - 1853 - 334 páginas
...a plane, which meet together in a point, but are not in the same direction. IX. A plane rectilinear **angle is the inclination of two straight lines to one another, which meet together** in a point, but are not in the same straight line. OBS. 1 . Unless the contrary be expressly stated,... | |
| John Drew - 1853 - 331 páginas
...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,... | |
| Euclides - 1855
...direction.] This definition is put in brackets, as useless, and unnecessary to be remembered. .IX. **A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line.** When two straight lines meet at a point, so that if produced they would intersect (cross) each other,... | |
| William Pease - 1856
...direction. Plane Angles are either Rectilineal, Curvilineal, or Mixtilineal. 18*. A Plane Eectilineal **Angle is the inclination of two straight lines to...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, of... | |
| Robert Rawson - 1856
...which meet together but are not in the same direction." IX. A plane rectilineal angle is the \ i» **inclination of two straight lines to one another,...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, of which... | |
| Euclides - 1858
...line. A plane angle is the opening of two lines from their point of meeting, or of intersection. 9. **A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line.** A plane rectilineal angle is the opening of two straight lines from their point of meeting or of intersection,... | |
| 1858
...friendship is the concord between, or inclination of, a knave and a fool, or two sharpers, or two fools, **to one another, which meet together, but are not in the same straight line,** each working for himself. This is the plane rectilineal angle of common life. VII. When one man stands... | |
| Robert Potts - 1860 - 361 páginas
...two lines to each other in a plane, which meet together, but are not in the same straight line. IX. **A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line.** NB If there be only one angle at a point, it may be expressed by a letter placed at that point, as... | |
| John Playfair - 1860 - 332 páginas
...which any two points being taken, the straight line between them lies wholly in that superficies. 6. **A plane rectilineal angle is the inclination of two...which meet together, but are not in the same straight** linn. E NB ' When several angles are at one point B, any one of them is expressed by three letters,... | |
| Isaac Todhunter - 1860
...We have first to explain how angles are measured. A plane rectilineal angle is defined by Euclid as **the inclination of two straight lines to one another...meet together, but are not in the same straight line.** And when a straight line standing on another makes the adjacent angles equal to one another, each of... | |
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