| Robert Simson - Trigonometry - 1775 - 534 pages
...plane, which meet together, but are not in the fame " direction." IX. A plane rectilineal angle is the inclination of two ftraight lines to one another,...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 - 552 pages
...plane, which meet together, but are not in the fame " direction." IX. A plane rectilineal angle is- the inclination of two ftraight lines to one another,...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... | |
| Robert Simson - Trigonometry - 1781 - 534 pages
..." plane, wnich meet together, but 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 ihe fame ftraight line. A Book I. B ' NB When feveral angles are at one point B, anyone of them * is... | |
| Euclid, John Playfair - Euclid's Elements - 1795 - 462 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 - 374 pages
...line between them lies wholly in that fupeificies. VIII. Omitted. IX. A plane reftilineal angle is the inclination of two ftraight lines to one another,...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,... | |
| Robert Simson - Trigonometry - 1804 - 530 pages
...plane, which meet together, but are not in the fame direction." IX. i A plane rectilineal angle is the inclination of two ftraight lines 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 - Circle-squaring - 1804 - 468 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... | |
| Robert Simson - Trigonometry - 1806 - 546 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. B B C NB c When several angles are at one point B, any one of < them is expressed... | |
| Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 962 pages
...into plane, spherical, and solid. Angle, a plane, rectilineal, is the inclination of two •traight lines to one another, which meet together, but are not in the same straight line. See Fig. 6. Angle, spherical, is an angle formed on the surfac* of a sphere by... | |
| 1811 - 566 pages
...first Book, in which it is affirmed that ' 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.' Book IV. relates to the construction of polygons, their inscrptkm in, and circumscription... | |
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