| Robert Simson - Trigonometry - 1775 - 520 pages
...to one another See N; " in a plane, which meet together, but are not in the fame " direction." IX. **A plane rectilineal angle is the inclination of two...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 is cxprefled by three... | |
| Euclid - 1781 - 520 pages
...to one another See N. " in a plane, which meet together, but are not in the fame " direction." IX. **A plane rectilineal angle is- the inclination of two...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 is exprefled by three... | |
| Euclid, Robert Simson - Geometry - 1781 - 466 pages
...lines to one another in a Se* N. " plane, wnich meet together, but are not in the fame direction." IX. **A plane rectilineal angle is the inclination of two...to one another, which meet together, but are not in** ihe fame ftraight line. A Book I. B ' NB When feveral angles are at one point B, anyone of them * is... | |
| James Williamson - Mathematics - 1781
...the fuppofition that the lines are in the fame plane, as I mall have occafion to obferve. And, the **plane rectilineal angle is the inclination of two ftraight lines to one another** in or upon fuch an even furface as this, which meet together but are not in the fame direction. They... | |
| Euclid - Euclid's Elements - 1789 - 272 pages
...the ninth, there feems to be ftill a fuperfluous condition. He defines a rectilineal angle, to be " **the inclination of two ftraight lines to one another,...meet together, but are not in the fame ftraight line** ." Now their not being in the fame ftraight line, is a neceflfary confequence, obvioufly included in... | |
| John Playfair - Euclid's Elements - 1795 - 400 pages
...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 - Trigonometry - 1799 - 351 pages
...ftraight line between them lies wholly in that fupeificies. VIII. Omitted. IX. A plane reftilineal **angle is the inclination of two ftraight lines to...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 expreffed by three letters,... | |
| John Bonnycastle - Euclid's Elements - 1803 - 279 pages
...feemstobeftillafuperfluous condition. He defines ar*Qi» lineal angle, to be " the inclination of two ftraight line* **to one another, which meet together, but are not in the fame ftraight line."** Now their not being in the fame flraight line, is a neceffary confequence, obvioufly included in their... | |
| Robert Simson - Trigonometry - 1804
...to one another in a See N. " plane, which meet together, but are not in the fame direction." IX. i **A plane rectilineal angle is the inclination of two...to one another, which meet together, but are not in** tbe fame ftraight line. A Book 1. B « NB When feveral angles are at one point B, any one of them «... | |
| John Playfair - Euclid's Elements - 1804 - 440 pages
...meeting of other lines than flraight lines. A plane angle is faid to be " the inclina" tion of two **lines to one another which meet together, but are " not in the fame** direftion." This definition is omitted here, becaufe that the angles formed by the meeting of curve... | |
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