 | Robert Simson - 1775 - 534 pages
...but are not in the fame " dire&ion." 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. CE * of them is exprefled by three letters, of which the letter that... | |
 | Euclid - 1781 - 552 pages
...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 pages
...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 lame ftrai2;ht line, is a neceflary confequence, obvioufly... | |
 | Euclid, John Playfair - 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 - 1799 - 374 pages
...in that fupeificies. VIII. Omitted. 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. B NS BooK T. * of them is expreffed by three letters, of which the letter that... | |
 | John Playfair, Euclid - 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... | |
 | John Playfair - 1806 - 320 pages
...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...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 pages
...to one another See N. " 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. B C E NB ' When several angles are at one point B, any one of ' them is expressed by three letters,... | |
 | Isaac Dalby - 1807 - 476 pages
...two points being taken, the right line between them lies wholly ia that plane or superficies. 8. A rectilineal angle is the inclination of two straight lines to one another, which meet in a point called the angular point, as the angle C. C \ An angle is usually denoted by three letters,... | |
 | Edward Augustus Kendall - 1811 - 462 pages
...most general division of angles is, into plane, spherical, and solid. Angle, a plane, rectilineal, is the inclination of two straight lines to one another,...meet together, but are not in the same straight line. See Fig. 6. Angle, spherical, is an angle formed on the surface of a sphere by the intersection of... | |
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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. 
