... the surface generated is called a conic surface, and the solid terminated by the surface is called a cone. II. The point is called the vertex, and the circle the base of the cone. The straight line drawn from the vertex to the centre of the circle,... Elements of the Conic Sections - Page 37by Robert Simson - 1809 - 177 pagesFull view - About this book
| Robert Simson - Conic sections - 1775 - 306 pages
...which is the vertex of the furface of the cone, is named the -vertex of the cons. 6. XIII. The flraight **line drawn from, the vertex to the centre of the circle, is** named the axis of the cone. 7. XIV. And the circle itfelf is named the bafe of the cone. 8. XV. Cones... | |
| Robert Simson - Conic sections - 1817 - 298 pages
...The figure contained by the circle, BOOK i. and the surface which is intercepted between v"" ""*""""' **the vertex and the circumference of the circle, is...the centre of the circle, is called the axis of the** cone. 7. XIV. And the circle itself is named the base of the cone. 8. XV. Cones which have their axis... | |
| Claudius Crozet - Conic sections - 1821 - 214 pages
...ellipse, a parabola, a hyperbola, &c. A circular cone is denominated right cone, when the axis, or **line drawn from the vertex to the centre of the circle, is** perpendicular to the base. Or, in other words, when all its elements make the same angle with the plane... | |
| Mathematics - 1821 - 312 pages
...of. one side and the perpendicular is the greatest possible when their included angle is bisected by **the straight line drawn from the vertex to the centre of the** circumscribing circle. Required a demonstration by the Elements of Euclid. By the Proposer, and Mn.... | |
| Enoch Lewis - Conic sections - 1844 - 234 pages
...described by the revolving line is called the base, and the fixed point the vertex, of the cone. Def. 3. **The straight line drawn from the vertex to the centre of the** base, is called ihe'axis of the cone. Def. 4. When the axis is at right angles to the plane of the... | |
| Isaac Wilber Jackson - Conic sections - 1845 - 116 pages
...surface is called a cone. II. The point is called the vertex, and the circle the base of the cone. **The straight line drawn from the vertex to the centre of the circle, is called the axis.** If the axis be perpendicular to the plane of the base, the cone is said to be right. III. If the generating... | |
| Conic sections - 1850 - 118 pages
...surface is called a cone. II. The point is called the vertex, and the circle the base of the cone. **The straight line drawn from the vertex to the centre of the circle, is called the axis.** If the axis be perpendicular to the plane of the base, the cone is said to be right. III. If the generating... | |
| Conic sections - 1850 - 124 pages
...surface is called a cone. II. The point is called the vertex, and the circle the base of the cone. **The straight line drawn from the vertex to the centre of the circle, is called the axis.** If the axis be perpendicular to the plane of the base, the cone is said to be right. III. If the generating... | |
| George Ripley, Charles Anderson Dana - Encyclopedias and dictionaries - 1874 - 822 pages
...plane enclosed by the given curve is called the base of the cone. When the base is a circle, and the **line drawn from the vertex to the centre of the circle is** perpendicular to the plane of the circle, the figure is called a right cone. If the line drawn from... | |
| 1874 - 810 pages
...plane enclosed by the given curve is called the base of the cone. When the base is a circle, and the **line drawn from the vertex to the centre of the circle is** perpendicular to the plane of the circle, the figure is called a right cone. If the line drawn from... | |
| |