 | Henry Lewis (M.A.) - 1875 - 104 sider
...(AB) containing the right angle, which side remains fixed (fig. I.) If the side which remains fixed is equal to the other side containing the right angle, the cone is said to be a right-angled cone, because then a vertical section of the figure always exhibits a right... | |
 | Robert Potts - 1876 - 446 sider
...solid figure described by the revolution of a rightangled triangle about one of the sides containing the right angle, which side remains fixed. If the...side be equal to the other side containing the right ongle, the cone is called a right-angled cone; if it be less than the other side, an obtuse-angled... | |
 | Isaac Todhunter - 1880 - 426 sider
...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...if it be less than the other side, an obtuse-angled cone; and if greater, an acute-angled cone. 19. The axis of a cone is the fixed straight line about... | |
 | Euclid, Isaac Todhunter - 1883 - 428 sider
...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...if it be less than the other side, an obtuse-angled cone ; and if greater, an acute-angled cone. 20. The base of a cone is the circle described by that... | |
 | Edward Mann Langley, W. Seys Phillips - 1890 - 538 sider
...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...if it be less than the other side, an obtuse-angled cone ; and if greater, an acuteangled cone. 19. The ' axis of a cone ' is the fixed straight line about... | |
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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. If the fixed side be equal to the other side containing the right angle, the cone is called a... 
