 | Bewick Bridge - 1821 - 648 páginas
...should not have cut the Curve. CONIC SECTIONS. CHAP. I. INTRODUCTION. A CONE is a solid figure formed by the revolution of a right-angled triangle about one of its sides (Euc. B. XI. Def. 18.). From the manner in which this solid is generated, it is evident that if it... | |
 | George Crabb - 1823 - 704 páginas
...figure described by the revolution of a semicircle, as CBA round its diameter CA, as in fig. 44. — A cone is a solid figure described by the revolution of a rightangled triangle, ABC, about one of the sides containing the right angle, as AB, fig. 45. If the fixed side be equal... | |
 | Anthony Nesbit - 1824 - 476 páginas
...triangles, meeting in a point, called the vertex of the pyramid. 9. A cone is a solid conceived to be described by the revolution of a right-angled triangle about one of its legs, which remains fixed, and is called the axis of the cone ; or it is a pyramid of an infinite number... | |
 | Peter Nicholson - 1826 - 390 páginas
...solid, bounded by plane surfaces, all but one of which meet in one point. A RIGHT CONE is a solid, described by the revolution of a right-angled triangle about one of its legs. The leg, or the une round which the triangle revolves, is called the axis of the cone ; and the... | |
 | John Bonnycastle - 1829 - 256 páginas
...conic sections are such plain figures as are formed by the cutting of a cone. 2. *A. cone is a solid described by the revolution of a right-angled triangle . about one of its legs, which remains fixed. C 3. The axis of the cone is the right line about which the triangle revolves.... | |
 | Tobias Ostrander - 1833 - 172 páginas
...Conic Sections are such plain figures as are formed by the cutting of a cone. 2. A cone is a solid, described by the revolution of a right-angled triangle about one of its legs which remains fixed. 3. The axis of the cone, is the right line about which the triangle revolves.... | |
 | Tobias Ostrander - 1834 - 182 páginas
...Conic Sections are such plain figures as are formed by the cutting of a cone. 2. A cone is a solid, described by the revolution of a right-angled triangle about one of its legs which remains fixed. 3. The axis of the cone, is the right line about which the triangle revolves.... | |
 | Euclid, James Thomson - 1837 - 410 páginas
...any straight line which passes through the centre, and is terminated both ways by its surface. 21. A cone is a solid figure described by the revolution of a right-angled triangle about one of the legs, which remains fixed. If the fixed leg be equal to the other leg, the cone is called a right-angled... | |
 | Thomas Holliday - 1838 - 404 páginas
...pyramid. 7. Pyramids of equal bases and altitudes are equal to each other. 9. A cone is a solid formed by the revolution of a rightangled triangle about, one of its sides containing the right angle, which side remains fixed, and is called the axis of the cone. Or, a cone... | |
 | Euclides - 1841 - 378 páginas
...which passes through the centre, and is terminated both ways by the superficies of the sphere. XVIII. A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed. XIX. « The ajris of a cone is the... | |
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A cone is a solid figure described by the revolution of a right-angled triangle about one of the sides containing the right angle, which side remains fixed. 
