 | Robert Rawson - 1856 - 178 pagina’s
...Revolution. A sphere is formed by the revolution of a semicircle about its diameter. A cone is produced by the revolution of a right-angled triangle about one of the sides which contains the right angle. A paraboloid is generated by the revolution of a parabola about its... | |
 | Harvey Goodwin - 1857 - 692 pagina’s
...it will only cut one portion c * Enclid'i definition of a cone is as follows, ( Euc. XI. Del'. 18); A cone is a solid figure described by the revolution of a right-angled triangle about one of the lidei containing the right angle, which side remains fixed. of the cone as BCD, and not the other BC'D',... | |
 | Isaac Todhunter - 1858 - 334 pagina’s
...under the name conic sections, can be obtained by the intersection of a right cone and a plane. DEF. A cone is a solid figure described by the revolution...one of the sides containing the right angle, which remains fixed. The fixed side called the axis of the cone. a Let OH be the fixed side, and triangle... | |
 | Elias Loomis - 1858 - 256 pagina’s
...rectangle revolves. The opposite side of the rectangle describes the convex surface. 3. A cone is a solid described by the revolution of a right-angled triangle...containing the right angle, which side remains fixed. The base 6f the cone is the circle described by that side containing the right angle, which revolves.... | |
 | Charles Haynes Haswell - 1858 - 350 pagina’s
...3C08.307. CONIC SECTIONS. DEFINITION. Plane figures generated by the cutting of a cone. A Cone is a figure described by the revolution of a rightangled triangle about one of its legs. The axis (of a cone) is the line about which the triangle revolves, as C o. The base is the... | |
 | Cadmus Marcellus Wilcox - 1859 - 308 pagina’s
...generatrix of the cylinder. FIG. 87.— Cylinder. CD, axis ; AE, generatrix. A cone is a solid, generated by the revolution of a right-angled triangle about one of the sides of the right angle : this side is called the axis or altitude. In the revolution that the rectangled... | |
 | Charles Hutton - 1860 - 1020 pagina’s
...passes through th« centre, and is terminated both ways by the superficies of the sphere. 8. A right cone is a solid figure described by the revolution...of the sides containing the right angle, which side n > mains fixed. If the fixed side be equal to the other side containing the right angle, lit* Done... | |
 | Isaac Todhunter - 1862 - 376 pagina’s
...included under the name conic sections, can be obtained bj the intersection of a cone and a plane. DBF. A cone is a solid figure described by the revolution...right-angled triangle about one of the sides containing the riglit angle, which remains fixed. The fixed side icalled the axis of the cone. cone such as is considered... | |
 | Evan Wilhelm Evans - 1862 - 116 pagina’s
...whose base is a regular polygon, and the triangular faces are equal and isosceles. 3. A CONE is a solid described by the revolution of a right-angled triangle...containing the right angle, which side remains fixed. The fixed side is called the axis of the cone. The hypotenuse describes the convex surface. The circle... | |
 | Benjamin Theophilus Moore - 1863 - 320 pagina’s
...area of the surface, and the volume, of a circular cone. DBF. A circular cone is the solid generated by the revolution of a right-angled triangle about...containing the right angle, which side remains fixed : this line is called the axis of the cone. From Lemma n. Cor. 2, it will be manifest that a circular... | |
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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. 
