 | 1884 - 862 σελίδες
...rectilineal angle [dihedral angle] is the inclination of two straight lines [planes through the eye] to one another which meet together but are not in the same straight line [plane]. X. When a straight line [plane] standing on another straight line [plane] makes the adjacent... | |
 | Euclides - 1884 - 182 σελίδες
...not in the same direction. 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. Notice three points in which this last definition differs from the one before it. First, the word '... | |
 | Stewart W. and co - 1884 - 272 σελίδες
...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. An angle is named from three or one letters, as ABC or B. X. When a straight line standing on another... | |
 | Charles Davies, Adrien Marie Legendre - 1885 - 538 σελίδες
...7. An AXIOM is a self-evident truth. 8. A PROBLEM is a question requiring solution. 9. A PO8TULATE is a self-evident Problem. Theorems, Axioms, Problems, and Postulates, are all called Proposit ions. 10. A LEMMA is an auxiliary proposition. 11. A COROLLARY is an obvious consequence of... | |
 | George William Usill - 1889 - 306 σελίδες
...3 Plane Rectilineal Angle.— 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. Note. — When an angle is simply spoken of, a plane rectilineal angle is always meant. 4. Perpendicular,... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 σελίδες
...not in the same direction. g. 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. 10. When a straight line standing on another straight line makes the adjacent angles equal to one another,... | |
 | George Irving Hopkins - 1891 - 208 σελίδες
...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 same point." — CHAUVENET.... | |
 | Florian Cajori - 1896 - 324 σελίδες
...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 a test for equality... | |
 | Euclid, Henry Sinclair Hall, Frederick Haller Stevens - 1900 - 330 σελίδες
...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 the straight lines... | |
 | Euclid - 1904 - 488 σελίδες
...straight lines. See Def. 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 the straight lines... | |
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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. 
