 | Gilbert Dyer - Arithmetic - 1770 - 240 pages
...Pyramid, be fuppofcd Infini'e, it will then be called a Cane : Or, 2I1 . A CONE may be defined to be a Solid, generated by the Revolution of a right-angled Triangle, about one of the Sides which contains the Right Angle. 212. A SPHERE is a Solid made by the Rotation of a Semi Circle about... | |
 | Benjamin Donne - 1796 - 120 pages
...9. A Cone is a folid, one end of which is a circle and the other a point ; it may be conceived to be generated by the revolution of a right-angled triangle about one of the fides which contains the right arrgle ; and • " the the quiefcent fide of the revolving triangle... | |
 | James Hayward - Geometry - 1829 - 218 pages
...the elementary treatises, are the right cone, the right cylinder and the sphere. The right cone is generated by the revolution of a right-angled triangle about one of the sides containing the right-angle, as the triangle SCA (Jig. 140) about the Fig.140. side SC. The hypothenuse... | |
 | Pierce Morton - Geometry - 1830 - 584 pages
...cone must be cut by a plane, in order that the section may be one of these curves. A right cone is the solid generated by the revolution of a right-angled triangle about one of its perpendicular sides. The fixed side, OH, about which the triangle revolves, is called theaxis ;... | |
 | A. Bell - Conic sections - 1837 - 180 pages
...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 of the cone is the fixed line about which... | |
 | William Whewell - Calculus - 1838 - 212 pages
...+ lx -- = 0. 4 (5) 4J/ 2 - 8xy + x 2 + 4y + 2x - 2 = 0. (6) y 2 - 2a?y + a? 2 - 8a ? + 16 = 0. 39- A cone is a solid generated by the revolution of a right-angled triangle about one of its sides. The angle contained between the fixed side and the hypothenuse of the triangle is the vertical... | |
 | Euclides - Geometry - 1841 - 378 pages
...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 fixed straight... | |
 | Chambers W. and R., ltd - 1842 - 744 pages
...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, the cone is equal... | |
 | J. M. Scribner - Measurement - 1844 - 130 pages
...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
...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. If the fixed side be equal to the other side... | |
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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. 
