 | J. M. Scribner - Mechanical engineering - 1849 - 286 pages
...5. A spheroid is a solid, generated by the revolution of an ellipse about either of its axes. 6. A sphere is a solid, terminated by a curved surface,...which are equally distant from a point within, called the center. A sphere may be described by the revolution of a semicircle about a diameter. 7. A radius... | |
 | Elias Loomis - Conic sections - 1849 - 252 pages
...squares, and one with pentagons. BOOK IX. SPHERICAL GEOMETRY. Definitions. 1. A sphere is a solid bounded by a curved surface, all the points of which are equally distant from a point within, called the center. The sphere may be conceived to be described by the revolution of a semicircle ADB, about... | |
 | Charles Davies - Trigonometry - 1849 - 372 pages
...CIRCLE, AND THE MEASUREMENT OF ANGLES. Definitions. 1. The circumference of a circle is a curved line, all the points of which are equally distant from a point within, called the centre. The circle is Ihe space terminated by this curved line.* 2. Every straight line, CA, CE, CD, drawn from... | |
 | Rufus Putnam - Arithmetic - 1849 - 276 pages
...of one end to the middle of the opposite end. 10. A SPHERE, or CLOSE, is a solid bounded by a curve surface, all the points of which are equally distant from a point within called the centre. 11. A hemisphere is half a sphere. 12. The axis or diameter of a sphere is a line passing through the... | |
 | Almon Ticknor - Measurement - 1849 - 156 pages
...SECTION 4. — THE CIRCLE AND MEASUREMENT or ANGLES. 27. The circumference of a circle is a curved line, all the points of which are equally distant from a point within, called the centre. Every straight line, CA, CE, ,CD, drawn from the centre to the circumference is called a radius, or... | |
 | Anna Cabot Lowell - Astronomy - 1850 - 378 pages
...Longitude and Latitude. Parallax. Terms defining the Orbit of a Planet. Sidereal and Apparent Time. § 1. A sphere is a solid terminated by a curved surface,...distant from a point within called the centre. The radius of a sphere is a straight line drawn from the centre to a point in the surface ; the diameter,... | |
 | Charles Davies - Geometry - 1850 - 238 pages
...cones are also similar, when the diameters of their bases are proportional to their altitudes. 25. A sphere is a solid terminated by a curved surface, all the points of which are equally distant from a certain point within called the centre. 26. The sphere may be described by revolving a semicircle,... | |
 | Charles Davies - Arithmetic - 1850 - 412 pages
...circle whose diameter is 14 ? 4. How many square yards in a circle whose diameter is 3% feet? 335. A sphere is a solid terminated by a curved surface, all the points of which are equally distant from a certain point within, called the centre. The line AD, passing through its centre C, is called the diameter... | |
 | Charles Davies - Geometry - 1850 - 218 pages
...cones are also similar, when the diameters of their bases are proportional to their altitudes. 25. A sphere is a solid terminated by a curved surface, all the points of which are equally distant from a certain point within called the centre. 26. The sphere may be described by revolving a semicircle,... | |
 | Charles Guilford Burnham - 1850 - 350 pages
...base. 8. A sphere is a solid, bounded by one continued convex surface, every point of which is equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which remains fixed. A hemisphere is half... | |
| |
CIRCLE is a plane figure bounded by a curved line, all the points of which are equally distant from a point within called the centre; as the figure ADB E. 
