 | George Irving Hopkins - 1891 - 210 Seiten
...lines all lie in the same plane. 17. "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." —EUCLID. " An angle is a figure formed by two straight lines drawn from the... | |
 | Florian Cajori - 1896 - 336 Seiten
...might be readily proved from the axioms. He defines a plane angle as the " inclination of two straight lines to one another, which meet together, but are not in the same straight line," but leaves the idea of angle magnitude somewhat indefinite by his failure to give... | |
 | Rupert Deakin - 1897 - 344 Seiten
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 | Daniel Alexander Murray - 1899 - 350 Seiten
...books on plane geometry a plane angle is defined in various ways, namely, as the inclination of two lines to one another, which meet together, but are not in the same direction ; or, as the figure formed by two straight lines drawn from the same point ; or, as... | |
 | Euclid, Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 330 Seiten
...formed by straight lines. See Del . 9. ] 9. 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. The point at which the straight lines meet is called the vertex of the angle, and... | |
 | Euclid - 1904 - 488 Seiten
...definition of a surface is to be understood in a similar way, 8. A plane angle is the inclination of two lines to one another, which meet together, but are not in the same direction. [Definition 8 is not required in Euclid's Geometry, the only angles employed by him... | |
 | Daniel Alexander Murray - 1906 - 466 Seiten
...books on plane geometry a plane angle is defined in various ways, namely, as the inclination of two lines to one another, which meet together, but are not in the same direction; or, as the figure formed by two straight lines drawn from the same point ; or, as the... | |
 | Joseph Gregory Horner - 1906 - 572 Seiten
...Angle (from Latin aiigulus, a corner). — In geometry an angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Angles are measured by the number of degrees they contain, the right angle, containing... | |
 | 1906 - 576 Seiten
...annealing. Angle (from Latin angulus, a corner). — In geometry an angle is the inclination of two straight lines to one another, which meet together, but are not in the same straight line. Angles are measured by the number of degrees they contain, the right angle, containing... | |
 | Daniel Alexander Murray - 1908 - 358 Seiten
...books on plane geometry a plane angle is defined in various ways, namely, as the inclination of two lines to one another, which meet together, but are not in the same direction ; or, as the figure formed by two straight lines drawn from the same point ; or, as... | |
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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. 
