| Joseph Fenn - Mathematics - 1769 - 524 pages
...are contained by the fame number of equal, fimilar and homologous furfaces. XI. A folid /Ingle (A) is that which is made by the meeting of more than two plane angles (ВАС, С AD & BAD), which are not in the fame plane, in one point (A). XIIA Pyramid (ЕВ ADF) '(Fig.... | |
| Euclid, John Playfair - Euclid's Elements - 1795 - 462 pages
...Solid is that which has length, breadth, and thicknefs. r, i VHL i ; 'i .! a See N. A folid angle is that which is made by the meeting of more than two plane angles, whicfy are not in the fame plane, in one point. See N. Similar folid figures are fuch- -as are contained... | |
| John Playfair, Euclid - Circle-squaring - 1804 - 468 pages
...produced ever fo far. •'•••• '•.••-•'• . " . ovin. * A folid angle is an angle made by the meeting of more than two plane angles, which are not in the fame plane, in one point, '• . • ....... . . . PROP. I. THE OR. o INE part of a ftraight line cannot... | |
| Robert Simson - Trigonometry - 1806 - 546 pages
...another though produced. IX. A solid angle is that which is made by the meeting of more than See N. two plane angles, which are not in the same plane, in one point. X. < The tenth definition is omitted for reasons given in the notes.' See N. See N Similar solid figures... | |
| Isaac Dalby - Mathematics - 1807 - 476 pages
...inclined to each other, or are every where at an equal perpendicular distance. 112. A solid angle is that which is made by the meeting of more than two...angles, which a.re not in the same plane, in one point. BEFINITIONS. 114. A. Prism is a solid whose ends are parallel, equal, and like plane figures, and its... | |
| English literature - 1808 - 606 pages
...not fulfilled in * pyramid formed with re-entering angles. The second definition, •a solid angle is that which is made by the meeting of more than two...angles, which are not in the same plane, in one point,' certainly does not expressly exclude a pyramid with re-entering angles. But Mr. Lax observes, and we... | |
| 1811 - 600 pages
...appears to us at once simple, universal) and unobjectionable, may be best stated in his own words. ' A solid angle is defined by Euclid, that which is...two plane angles, which are not in the same plane, ia one point. ' Others define it the angular space comprized between several planet meeting in one... | |
| Charles Hutton - Mathematics - 1812 - 624 pages
...the number of angles of the polygon. GENERAL SCHOLIUM. On the A'ature and Measure of Solid Angles. A Solid Angle is defined by Euclid, that which is...between several planes meeting in one point. It may be denned still more generally, the angular space included between several plane surfaces or one ormore... | |
| Charles Hutton - Mathematics - 1816 - 618 pages
...the number of angles of the polygon. GENERAL SCHOLIUM. On the Nature and Measure of Solid Jtngles. A Solid Angle is defined by Euclid, that which is...It may be defined still more generally, the angular sfiacr Included between several plane surfaces or one or more curved surfaces, meeting in the point... | |
| Olinthus Gregory - Plane trigonometry - 1816 - 278 pages
...right angles, n denoting the number of angles of the polygon. Nature and Measure of Solid Angles. 45. A solid angle is defined by Euclid, that which is...the meeting of more than two plane angles, which are n«t in the same plane, in one point. Others define it the angular space comprised between several... | |
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