 | Robert Simson - 1775 - 534 ページ
...are not in the fame " direction." IX. A plane rectilineal angle is the inclination of two ftraight lines to one another, which meet together, but are not in the fame ftraight line. « NB Book I. B CE ' NB When feveral angles are at one point B, any one ' of them... | |
 | Euclid - 1781 - 552 ページ
...are not in the fame " direction." IX. A plane rectilineal angle is- the inclination of two ftraight lines to one another, which meet together, but are not in the fame ftraight line. NB Book I. A! D CE * NB When fevcral angles are at one point B, any one of them... | |
 | Euclid - 1789 - 296 ページ
...ftill a fuperfluous condition. He defines a rectilineal angle, to be " the inclination of two ftraight lines to one another, which meet together, but are not in the fame ftraight line ." Now their not being in the fame ftraight line, is a neceflfary confequence, obvioufly... | |
 | Euclid, John Playfair - 1795 - 462 ページ
...the meeting of other lines than ftraight lines. A pl»ne angle is faid to be ' the inclination of two lines to one another which meet together, but are not in the feme direftion.' This definition is omitted here, becaufe that the angles formed by the meeting of... | |
 | Alexander Ingram - 1799 - 374 ページ
...in that fupeificies. VIII. Omitted. IX. A plane reftilineal angle is the inclination of two ftraight lines to one another, which meet together, but are not in the fame ftraight line. B NB BooK T. ' NB When feveral angles are at one point B, any one * of them is... | |
 | John Playfair - 1806 - 320 ページ
...taken, the straight line between them lies wholly in that superficies. VI. A plane rectilineal angle is the inclination of two straight lines to one another,...meet together, but are not in the same straight line. A NB ' When several angles are at one point B, any one ' of them is expressed by three letters, of... | |
 | Robert Simson - 1806 - 546 ページ
...in a 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. B B C NB c When several angles are at one point B, any one of < them is expressed by three letters,... | |
 | Edward Augustus Kendall - 1811 - 962 ページ
...into plane, spherical, and solid. Angle, a plane, rectilineal, is the inclination of two •traight lines to one another, which meet together, but are...Fig. 6. Angle, spherical, is an angle formed on the surfac* of a sphere by the intersection of two great circles; or, it is the inclination of the planes... | |
 | 1811 - 566 ページ
...the 9th definition of Euclid's first Book, in which it is affirmed that ' a plane rectilineal angle is the inclination of two straight lines to one another,...together, but are not in the same straight line.' Book IV. relates to the construction of polygons, their inscrptkm in, and circumscription about, circles.... | |
 | John Mason Good - 1813 - 714 ページ
...the same direction." 9. A plane rectilineal angle is the inclination of two straight lines to or.e another, which meet together, but are not in the same straight line. 10. When a straight line standing on another straight line makes the adjacent angles equal to one another,... | |
| |
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. 
