 | A. Bell - Conic sections - 1837 - 180 pages
...line passing through the centre of the sphere, and terminated at each extremity by the surface. 12. A right cone is a solid described by the revolution of a right-angled triangle about one of the sides containing the right angle, which remains fixed. The axis... | |
 | Jeremiah Day - Geometry - 1838 - 416 pages
...rectangle about one of its sides. The ends or bases are evidently equal and parallel circles. And the axis, which is a line passing through the middle of the...The height of a cone is the perpendicular distance from the vertex to the plane of the base. In a right cone, it is the length of the axis. The slant-height... | |
 | Jeremiah Day - Geometry - 1839 - 434 pages
...rectangle about one of its sides. The ends or bases are evidently equal and parallel circles. And the axis, which is a line passing through the middle of the...to the axis, which proceeds from the middle of the basis to the vertex. The base of an oblique cone is also a circle, but is not perpendicular to the... | |
 | Charles Davies - Geometrical drawing - 1840 - 262 pages
...multiplied by the altitude. Thus, the solidity of the cylinder AC, is equal to area of base x FE. 6. 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... | |
 | John Playfair - Euclid's Elements - 1842 - 332 pages
...centre, and is terminated both ways by the 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... | |
 | Scottish school-book assoc - 1845 - 444 pages
...axis ; and either of the circles described by its adjacent sides the base of the cylinder. VIII. A cone is a solid described by the revolution of a right angled triangle about one of its sides remaining fixed, which is called the axis ; and the circle described by the other side is... | |
 | Euclid, John Playfair - Euclid's Elements - 1846 - 334 pages
...9. The centre of a sphere is the same with 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... | |
 | Dennis M'Curdy - Geometry - 1846 - 168 pages
...either side. 9. Tlie centre of a sphere is the middle point of the axis. 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, winch remains fixed. 13. The base of a cone is the circle described by... | |
 | Jeremiah Day - Logarithms - 1848 - 354 pages
...rectangle about one of its sides. The ends or bases are evidently equal and parallel circles. And the axis, which is a line passing through the middle of the...angle. The base is a circle, and is perpendicular to Names. No. of sides. Surfaces. | Sol1d1t1es. Tetraedron Hexaedron Octaedron Dodecaedron Icosaedron... | |
 | Charles Richson - 1848 - 98 pages
...up with some solid substance, a cone would be formed. DEFINITION. — 1. "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." " If the fixed side be equal to the other side... | |
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A right cone is a solid described by the revolution of a right angled triangle about one of the sides which contain the right angle. 
