 | Elias Loomis - Conic sections - 1861 - 254 pages
...triangles, one with squares, and one with pentagons GEOMETRY. BOOK IX. SPHERICAL GEOMETRY Definitions. 1. A sphere is a solid bounded by a curved surface, all the Aroints of which are equally distant from a point within, called the center. The sphere may be conceived... | |
 | Benjamin Greenleaf - Geometry - 1862 - 532 pages
...CIRCLE, AND THE MEASURE OF ANGLES. DEFINITIONS. 152. 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 centre; as the figure ADB E. 153. The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ; or... | |
 | James Bates Thomson - Arithmetic - 1862 - 436 pages
...the diameter by 3.14159. (Leg. V. 11. Sch.) Note. — 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 diameter cfa circle is a straight line which passes through the centre, and is terminated on Doth... | |
 | Benjamin Greenleaf - Geometry - 1861 - 638 pages
...The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre. 154. A RADIUS of a circle is any straight line drawn from the centre to the circumference ; as the... | |
 | Benjamin Greenleaf - Geometry - 1862 - 518 pages
...ITS PR0PERTIES. DEFINITIONS. 497. A SPHERE is a solid, or volume, bounded by a curved surface, all points of which are equally distant from a point within, called the centre. The sphere may be conceived to be formed by the revolution of a semicircle, DAE, about its diameter,... | |
 | George Payn Quackenbos - Physics - 1862 - 468 pages
...Square is a rectangle whose sides are equal; r ' 22. A Sphere ia a solid bounded by a curved surface, IJ all the points of which are equally distant from a point within called L s. the centre; as, ABCD, Fig. 24. 23. The Axis of a sphere is a straight line passing through its... | |
 | Benjamin Greenleaf - Geometry - 1863 - 502 pages
...CIRCLE, AND THE MEASURE OF ANGLES. DEFINITIONS. 152. 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; as the figure ADB E. 153. The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding... | |
 | Charles Davies - Arithmetic - 1865 - 468 pages
...5. What is the area of a circle whose diameter is mile ? Sphere. 414. A SPHERE is a portion of space bounded by a curved surface, all the points of which are equally distant from a certain point within, called the center. The line AI), passing through its center C, is called the... | |
 | Benjamin Greenleaf - Geometry - 1866 - 328 pages
...The CIRCUMFERENCE or PERIPHERY of a circle is its entire bounding line ; or it is a curved line, all points of which are equally distant from a point within called the centre. 154. A RADIUS of a circle is any straight line drawn from the centre to the circumference ; as the... | |
 | C. Davies - 1867 - 342 pages
...when the diameters of heir bases are proportional to their altitudes25 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 centre26 The sphere may be described by revolving a semicircle, ABD,... | |
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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. 
