| Thomas Malton - 1774 - 482 pages
...a SPHERE, is any Right Line puffing through its Center, and terminated by its Surface. As A B. NB A **Sphere may be conceived to be generated, by the revolution of a Semicircle;** as ADB, on its Diameter AB, which remains fixed whilft th« Semicircumference revolves ; and, in its... | |
| David Steel - 1805 - 390 pages
...Sphere, or globe, is a solid bounded by one uniform 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 rotation of a semi-circle about its diameter. The.i4.ra of a solid is a line, or imaginary... | |
| Samuel Webber - Mathematics - 1808 - 522 pages
...hexagonal, 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 fixed. 9. The axis of a... | |
| Robert Woodhouse - Geometrical optics - 1819 - 264 pages
...points are equally distant from an interior point, called the centre of the sphere. The surface of a **sphere may be conceived to be generated by the revolution of a semicircle** round its diameter. 2. Every section of a sphere, made by a plane, (so it will be demonstrated) is... | |
| Adrien Marie Legendre - Geometry - 1819 - 208 pages
...the measure of angles. DEFTJWTIOW3. 90. THE circumfrence of a circle is a curved line all the ipoints **of which are equally distant from a point within called the centre. The** circle is the space terminated by this curved line*. Fig. 46. 91. Every straight line CA, CE, CD (Jig.... | |
| Adrien Marie Legendre - Geometry - 1822 - 367 pages
...a3. BOOK VII. THE SPHERE. Definitions. I. The sphere is a solid terminated by a curve surface, a1' **the points of which are equally distant from a point within, called the centre.** D The sphere may be conceived to be generated by the revolution of a semicircle DAE about its diameter... | |
| Edward Riddle - Nautical astronomy - 1824 - 572 pages
...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,** about its diameter. Cor. 2. The section of a sphere, by a plane passing through the centre, is a circle... | |
| Adrien Marie Legendre - Geometry - 1825 - 224 pages
...shall have SECTION THIRD. Of the Sphere. DEFINITIONS. ' 437. A sphere is a solid terminated by a curved **surface all the points of which are equally distant...be generated by the revolution of a semicircle DAE** (fig. 220) about its diameter DE ; Fig. 220. for the surface thus described by the curve DAE will have... | |
| Adrien Marie Legendre, John Farrar - Geometry - 1825 - 280 pages
...the Circle and the Measure of Angles. DEFINITIONS. 90. THE circumference of a circle is a curved line **all the points of which are equally distant from a point within called the centre. The** circle is the space terminated by this curved line*. Fig. 46. 91. Every straight line CA, C£, CD (fig.... | |
| Adrien Marie Legendre - 1825 - 570 pages
...the Circle and the Measure of Angles. DEFINITIONS. ^0. THE circumference of a circle is a curved line **all the points of which are equally distant from a point within called the centre. The** circle is the space terminated by this curved line*. 46. 91. Every straight line CA, CE, CD (fig. 46),... | |
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