 | Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...round pyramid, having a circular 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... | |
 | Benjamin Greenleaf - Arithmetic - 1841 - 334 pages
...round pyramid, having a circular 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... | |
 | Arithmetic - 1841 - 200 pages
...solidity of a globe, or sphere. DEFINITION. — A globe or sphere is (J) a round body bounded by a surface every point of which is equally distant from a point within called the centre; a line passing from one side to the other through the centre is called the diameter, or axis. RULE.... | |
 | Richard Abbatt - Spherical astronomy - 1841 - 234 pages
...SECTION V. SPHERICAL GEOMETRY. (68.) Def. A sphere is a solid bounded on all sides by a curve surface, every point of which is equally distant from a point within, called the centre. A sphere may be conceived to be generated by a semicircle's revolving about its diameter, which remains... | |
 | Nicholas Tillinghast - Geometry, Plane - 1844 - 110 pages
...EVERY line which is not straight, is called a curve line. 2. A circle is a space enclosed by a curve line, every point of which is equally distant from a point within ; which point is called the centre. 3. The boundary of a circle is called its circumference. 4. A radius... | |
 | John Lee COMSTOCK (and HOBLYN (Richard Dennis)), John Lee COMSTOCK - 1846 - 506 pages
...GLOBE. A round or spherical body, more usually called a sphere, bounded by one uniform convex surface, every point of which is equally distant from a point within, called the centre. GNOMON. An apparatus used by the ancients for finding the altitudes and declinations of the celestial... | |
 | James Robinson (of Boston.) - 1847 - 304 pages
...the figure F, the frustum of a cone. 7. A SPHERE, or GLOBE, is a solid, bounded by a 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. The figure... | |
 | William Vogdes - Arithmetic - 1847 - 324 pages
...perpendicular falling upon it from the opposite angle. 30. A circle is a plane figure bounded by a curve line which is equally distant from a point within, called the centre. The boundary line is called the circumference. 31. An arc is any portion of the circumference. 32. A semicircle... | |
 | Jeremiah Day - Logarithms - 1848 - 354 pages
...ART. 18. Deftnition I. A circle is a plane bounded by a line which is equally distant in all its parts from a point within called the centre. The bounding line is called the circumference or periphery. An arc is any portion of the circumference. A semi.circle is half, and a quadrant onefourth... | |
 | Elias Loomis - Conic sections - 1849 - 252 pages
...III. THE CIRCLE, AND THE MEASURE OF ANGLES. Definitions. 1. A circle is a plane figure bounded by a line, every point of which is equally distant from a point within, called the center. This bounding line is called the circumference of the circle. 2. A radius of a circle is... | |
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A Circle is a plane figure bounded by a curved line every point of which is equally distant from a point within called the center. 
