Books Books THE sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre. Elements of Geometry, After Legendre, with a Selection of Geometrical ... - Page 255
by Charles Scott Venable - 1881 George Albert Wentworth - Arithmetic - 1898 - 424 pages
...plane figure. 137. A circle is a plane figure bounded by a curved line called the circumference, all points of which are equally distant from a point within called the centre. A straight line drawn through the centre, having its ends in the circumference, is called a diameter... ## Stone; an Illustrated Magazine, Volume 17

Building stones - 1898 - 494 pages
...and longitude, difference of direction, etc. A circle is a plane figure, bounded by a curved line, all the points of which are equally distant from a point within called the center. The circumference of a circle is^ its entire boundary line. The arc of a circle is any... ## Plane and Solid Geometry

James Howard Gore - Geometry - 1898 - 232 pages
...OCTAEDRON ICOSAEDRON BOOK VIII. THE SPHERE. DEFINITIONS. 475. A Sphere is a solid bounded by a surface, all points of which are equally distant from a point within called the centre. A sphere may be generated by the revolution of a semicircle about its diameter as an axis. 476. A Radius... ## The Elements of Plane Geometry

Charles Austin Hobbs - Geometry, Plane - 1899 - 266 pages
...it is necessary to make use of circles. A circle is a portion of a plane bounded by a curved line, all the points of which are equally distant from a point within called the centre. The bounding line is called the circumference, and any part of the circumference is called an arc; as AB.... ## Plane Geometry

George Albert Wentworth - Geometry, Modern - 1899 - 272 pages
...BOOK II. THE CIRCLE. DEFINITIONS. 216. A circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within called the centre. The bounding line is called the circumference of the circle. 217. A radius is a straight line from the... ## Plane and Solid Geometry

George Albert Wentworth - Geometry - 1899 - 496 pages
...BOOK II. THE CIRCLE. DEFINITIONS. 216. A circle is a portion of a plane bounded by a curved line, all points of which are equally distant from a point within called the centre. The bounding line is called the circumference of the circle. 217. A radius is a straight line from the... ## The Essentials of Geometry: Solid

Webster Wells - 1899 - 196 pages
...line tangent to the base. THE SPHERE. DEFINITIONS. 561. A sphere is a solid bounded by a surface, all points of which are equally distant from a point within called the centre. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter is a straight... ## Plane and Solid Geometry

George Albert Wentworth - Geometry - 1899 - 500 pages
...THE SPHERE. PLANE SECTIONS AND TANGENT PLANES. 737. DBF. A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre. 738. A sphere may be generated by the revolution of a semicircle ACB about its diameter AB as an axis.... ## Observational Geometry

William Taylor Campbell - Geometry - 1899 - 268 pages
...AND LINES The circle is the face itself, and is defined as a face bounded by a curved line all parts of which are equally distant from a point within called the centre. The word "circle" is sometimes applied to the curve which bounds it, just as the word " ring " may refer... 