 | Almon Ticknor - Measurement - 1849 - 156 pages
...contained in the other two squares B and C. SECTION 4. — THE CIRCLE AND MEASUREMENT or ANGLES. 27. The circumference of a circle is a curved line, all...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... | |
 | Rufus Putnam - Arithmetic - 1849 - 276 pages
...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... | |
 | J. M. Scribner - Mechanical engineering - 1849 - 286 pages
...revolution of an ellipse about either of its axes. 6. A sphere is a solid, terminated by a curved surface, all the points of 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
...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... | |
 | George Roberts Perkins - Geometry - 1850 - 332 pages
...prism; hence they will be their lines of contact. 7. A sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre. The sphere m-ay be conceived to be generated by the revolution of a semicircle DAE about its diameter DE;... | |
 | Anna Cabot Lowell - Astronomy - 1850 - 412 pages
...of a Planet. Sidereal and Apparent Time. § 1. A sphere is a solid terminated by a curved surface, all the points of which are equally 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 - Logic - 1850 - 400 pages
...the number of sides, viz. Pentagons, Hexagons, Heptagons, &c. § 244. A portion of a plane bounded by a curved line, all the points of which are equally distant from a certain point within called the centre, is called a circle, and the bounding line is called the circumference.... | |
 | Charles Davies - Logic - 1850 - 402 pages
...sides, viz. Pentagons, Hexagons, Heptagons, &c. § 244. A portion of a plane bounded by a cirek»: curved line, all the points of which are equally distant from a certain point within called the centre, is called a circle, and the bounding line is called the circumference.... | |
 | Adrien Marie Legendre - Geometry - 1852 - 436 pages
...common ratio: the proportional magnitudes will then be represented by J., rrixA, m?xA, m?xA, m*xA, &c. : BOOK III. THE CIRCLE, AND THE MEASUREMENT OF ANGLES....DEFINITIONS. 1. The CIRCUMFERENCE OF A CIRCLE is a curve line, all the points of which, are equally distant from a point within, called the centre. The... | |
 | Charles Davies - Geometry - 1854 - 436 pages
...the ratio of the first to any one of the following terms exactly corresponds with the enunciation. BOOK III. THE CIRCLE, AND THE MEASUREMENT OF ANGLES....DEFINITIONS. 1. The CIRCUMFERENCE OF A CIRCLE is a curve line, all the points of which are equally distant from a point within, called the centre. The... | |
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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. 
