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" It is a line every point of which is at the same distance from a point within it called the centre. "
First book of mathematics - Σελίδα 6
των Hugo Reid - 1872 - 124 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο

A treatise on navigation, and nautical astronomy

Edward Riddle - 1824 - 572 σελίδες
...ELEMENTARY PRINCIPLES OP SPHERICAL TRIGONOMETRY. 1. A SPHERE is a solid bounded by a curve surface, every point of which is at the same distance from a point within, called the centre. Cor. 1. A sphere may be conceived to be generated by the revolution of a semicircle,...

A London Encyclopaedia, Or Universal Dictionary of Science, Art ..., Τόμος 10

Thomas Curtis - 1829 - 814 σελίδες
...same proportions as the diameters of their bases. 11. A sphere is a solid bounded by a curve surface, every point of which is at the same distance from a point within, called the centre. 12. The diameter of a sphere is any right line passing through the centre and terminated...

Unity Pulpit, Τόμος 8

1886 - 680 σελίδες
...longer ? You have broken the conditions of a lake ; and it ceases to be one. What is a circle ? It is a line every point of which is at the same distance from a point within it called the centre. Suppose you change that, and have some part of the circle not the same distance from the centre...

Ray's New Higher Arithmetic: A Revised Edition of the Higher Arithmetic

Joseph Ray - 1880 - 420 σελίδες
...vertex is cut off by a plane parallel to the base. 11. A Sphere is a solid bounded by a curved surface, every point of which is at the same distance from a point within, called the center. The diameter of a sphere is a straight line passing through the center and having...

Text-book on practical solid or descriptive geometry, Μέρος 1

David Allan Low - 1884 - 142 σελίδες
...the other side containing the right angle is the base. A sphere is a solid every point on the surface of which is at the same distance from a point within it, called its centre. A sphere may also be defined as a solid described by the revolution of a semicircle about...

The Elements of Solid Geometry

Charles Davison - 1905 - 140 σελίδες
...distance from the centre, the following may be given as an alternative definition : A sphere is a surface every point of which is at the same distance from a point within it called the centre. SECTIONS OF SPHERES. 74. PROP. 52. The common section of a plane and a sphere is a circle....

Appleton's New Practical Cyclopedia: A New Work of Reference Based ..., Τόμος 3

Marcus Benjamin, Arthur Elmore Bostwick, Gerald Van Casteel, George Jotham Hagar - 1910 - 546 σελίδες
...a point is position without magnitude, a straight line is the shortest distance between two points, a circle is a plane figure bounded by one curved line every point of which is equally distant from a point within the circle known as its center." The axioms of geometry are propositions...

Practical Geometry and Graphics

David Allan Low - 1912 - 468 σελίδες
...containing the right angle is the base of the cone. A sphere is a solid every point on the surface of which is at the same distance from a point within it called its centre. A sphere may also be defined as a solid described by the revolution of a semicircle about...

Plane Geometry

Edith Long, William Charles Brenke - 1916 - 292 σελίδες
...straight edge, the latter preferably not marked in units. 41. Definitions. A circumference is a closed curved line every point of which is at the same distance from a point within called the center. A part of a circumference is called an arc. The area enclosed by a circumference...

First Year Mathematics

George William Evans, John A. Marsh - 1916 - 264 σελίδες
...number of coins of each denomination. CIRCLES 40. A circle is a figure on a flat surface made by a curved line every point of which is at the same distance from a point within called the center. The curved line of the circle is sometimes called the circumference. Any circle...




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