 | Webster Wells - Arithmetic - 1893 - 382 pages
...what is the length of its diagonal ? 229. 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; as ABD. The bounding curve is called the circumference of the circle. A radius is a straight line drawn... | |
 | Arthur Latham Baker - Geometry, Solid - 1893 - 154 pages
...v THE SPHERE. 213. A sphere is a solid bounded by a curved surface, every point of which is equally distant from a point within, called the centre. A sphere may be considered as generated by the revolution of a semicircle about its diameter as an axis. 214. A radius... | |
 | Webster Wells - Geometry - 1894 - 400 pages
...cone passes through the centre of every section parallel to the base. THE SPHERE. DEFINITIONS. 573. A sphere is a solid bounded by a surface, all points...equally distant from a point within called the centre. 574. A radius of a sphere is a straight line drawn from the centre to the surface. A diameter is a... | |
 | Theophilus Nelson - Geometry, Modern - 1902 - 154 pages
...following definition of a cirFIG. 10. cumference. Definition: — A circumference is a curved line all points of which are equally distant from a point within called the centre. 28. A circumference incloses or bounds a portion of a plane. This portion of a plane is called a circle.... | |
 | Agriculture - 1903 - 616 pages
...through the center and terminated at both ends by the surface is called a diameter of the sphere. 9. A sphere may be generated by the revolution of a semicircle about its diameter. For, if the semicircle ACB, Fig. 1, is turned about its diameter AB, its center o remains fixed, and... | |
 | Philip Devereux Johnston - Mechanical drawing - 1903 - 220 pages
...sides a Dodecagon. 47 A Circle is a plain figure bounded by a curved line called the Circumference, all points of which are equally distant from a point within called the Centre. 48 A Radius of a circle is a straight line drawn from the centre to the circumference. 0 49 A Diameter... | |
 | Astronomy - 1903 - 612 pages
...through the center and terminated at both ends by the surface is called a diameter of the sphere. 9. A sphere may be generated by the revolution of a semicircle about its diameter. For, if the semicircle AC 77, Fig. 1, is turned about its diameter AB, its center o remains fixed,... | |
 | George Albert Wentworth - 1903 - 318 pages
...feet of brick does the chimney contain ? A Sphere is a solid bounded by a curved surface all pointa of which are equally distant from a point within called the centre. A straight line drawn from the centre to the surface is called a radius, and a straight line drawn through... | |
 | G. F. Burn - Geometry - 1903 - 272 pages
...by the revolution of a right-angled triangle about its fixed altitude, which is then its axis. The sphere may be generated by the revolution of a semicircle about its fixed diameter. Solids of. revolution possess the peculiarity that all sections made by planes perpendicular... | |
 | George Albert Wentworth - Geometry - 1904 - 496 pages
...volumes of the frustum and the cone. BOOK VIII. THE SPHERE. PLANE SECTIONS AND TANGENT PLANES. 737. DBF. A sphere is a solid bounded by a surface all points...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.... | |
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A sphere is a solid bounded by a surface all points of which are equally distant from a point within called the centre. 
