| John Radford Young - 1827 - 208 ページ
...an angle is very vague, and can convey but an indistinct notion of angular magnitude ; he calls it " **the inclination of two straight lines to one another,...together, but are not in the same straight line."** To understand this definition, it is necessary previously to know what is meant by " the inclination... | |
| Euclid, Dionysius Lardner - 1828 - 324 ページ
...the Elements, as being useless. (10) IX. A plane rectilinear angle is the inclination of two right **lines to one another, which meet together, but are not in the same** right line. (11) X. When a right line standing on another right line makes the adjacent angles equal,... | |
| Thomas Curtis - 1829
...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 straight lines to one** another,which meet together, but are not in the same straight line. Fig.2. Note. When several angles... | |
| John Playfair - 1832 - 333 ページ
...which any two points being taken, the straight line between them lies wholly in that superficies. VI. **A plane rectilineal angle is the inclination of two...lines to one another, which meet together, but are** notin the same straightline. • The definitions marked with inverted commas are different from those... | |
| Euclid - 1835 - 513 ページ
...to one See N. " another in a plane, which meet together, but are not in " the same direction." IX. **A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line.** Book I. -CE NB ' Wheir several angles are at one point B, any one of them is expressed by three letters,... | |
| 1836 - 472 ページ
...being taken, the straight line between them lies wholly in that superficies. 6. A plane rectilinial **angle is the inclination of two straight lines to...meet together but are not in the same straight line.** 7. When a straight line standing on another straight line makes the adjacent angles equal to one another,... | |
| Edward Tagart - 1837 - 135 ページ
...Stewart's Philosophy, vol. ii. pp. 158, 160. Take for example the ninth and eleventh definitions. " **A plane rectilineal angle is the inclination of two...meet together but are not in the same straight line."** " An obtuse angle is that which is greater than a right angle." With what propriety can it be said... | |
| Andrew Bell - 1837 - 240 ページ
...which any two points being taken, the straight line between them lies wholly in that superficies. 9. **A plane rectilineal angle is the inclination of two...meet together, but are not in the same straight line.** When several angles are at one point B, any one of them is expressed by three letters, of which the... | |
| S. E. Parker - 1837 - 328 ページ
...impart. When we, on first opening the pages of Euclid, read, " a line is length without breadth ;" " **a plane rectilineal angle is the inclination of two straight lines to one another** that meet in a point ;" " that a triangle is a plane figure bounded by three lines," Ac. ; from hence... | |
| John Playfair - 1837 - 318 ページ
...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 curve... | |
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