 | John Playfair - Euclid's Elements - 1842 - 332 pages
...superficies of the sphere. 11. 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. 12. The axis of a cone is the fixed straight line about which the triangle revolves. 13. The base of... | |
 | Chambers W. and R., ltd - 1842 - 744 pages
...perpendicular to its base, it is called a right cone. Other cones are said to be oblique. A right cone may be described by the revolution of a right-angled triangle about one of the sides of the right angle. It is proved that if a cone and a cylinder have the same base and the same altitude,... | |
 | J. M. Scribner - Measurement - 1844 - 130 pages
...Right Cone is a solid body of a true taper from- the base to a point which is called the vertex, and is described by the revolution of a right-angled triangle about one of the sides which contains the right angle; as, AB (fig. 2.) The circle described by the revolving side is called... | |
 | Euclid - Geometry - 1845 - 218 pages
...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...containing the right angle, which side remains fixed. If the fixed side be equal to the other side containing the right angle, the cone is called a right-angled... | |
 | Euclides - 1845 - 546 pages
...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...containing the right angle, which side remains fixed. If the fixed side be equal to the other side containing the right angle, the cone is called a right-angled... | |
 | Euclid, James Thomson - Geometry - 1845 - 382 pages
...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 rightangled 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... | |
 | Euclides - 1846 - 292 pages
...centre, and is terminated both ways by the superficies of the sphere. xvni. A cone is a solid figure described by the revolution of a right-angled triangle...containing the right angle, which side remains fixed. If the fixed side be equal to the other side containing the right angle, the cone is called a right-angled... | |
 | Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...that of the semicircle. 196 11. 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. 12. The axis of a cone is the fixed straight line about which the triangle revolves. 13. The base of... | |
 | Charles Davies - Geometrical drawing - 1846 - 254 pages
...cone described ? What is its base ? what its convex surface ? what its altitude, and what its vertex ? A cone is a solid, described by the revolution of a right-angled triangle ABC, about one of its sides CB. The circle described by the revolving side AB, is called the base of... | |
 | Charles William Hackley - Geometry - 1847 - 248 pages
...both ways by the superficies of the sphere. The axis is a diameter. 9. A right Cone is a solid figure described by the revolution of a right-angled triangle...containing the right angle, which side remains fixed. Thus the side AC, revolving round A AB, one of the sides which contains the right angle and remains... | |
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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. 
