| John Playfair - Euclid's Elements - 1806 - 311 pages
...circumference are equal to one another. XII. And this point is called the centre of the circle. XHL A **diameter of a circle is a straight line drawn through the centre, and terminated** both ways by the circumference. XIV. A semicircle is the figure contained by a diameter and the part... | |
| John Aikin - Geography - 1807 - 416 pages
...circumference, which is every where equally distant from a point within the figure called the centre. 2. A **diameter of a circle is a straight line drawn through the centre and terminated** both ways by the circumference. 3. An arc of a circle is any part of the circumference. 4. The circumference... | |
| Isaac Dalby - Mathematics - 1807 - 476 pages
...the circumference. Thus if C be the centre, CR is the radius. 51. The diameter of a circle is a right **line drawn through the centre, and terminated by the circumference both ways,** and therefore it is twice the radius. 52. An arc of a circle is any part of the circumference. 53.... | |
| Sir John Leslie - Geometry, Analytic - 1809 - 524 pages
...describing line its radius, and the boundary traced by the remote end of that line its circumference. 3$. **The diameter of a circle is a straight line drawn through the centre, and terminated** both ways by the circumference. It is obvious that all radii of the same circle are equal to each other... | |
| Euclid - Geometry - 1810 - 518 pages
...circumference, are equal to one another: XVI. A.nd this point is called the centre of the circle. XVII. A **diameter of a circle is a straight line drawn through the centre, and terminated** both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part... | |
| John Gummere - Surveying - 1814 - 390 pages
...radius of a circle is a straight line drawn from the centre to the circumference, as CB, Fig. 1735. **The diameter of a circle is a straight line drawn through the centre, and terminated** both wajs by the circumference, as AB, Fig. 17. It divides the circle into two equal parts, called... | |
| Jeremiah Day - Measurement - 1815 - 388 pages
...circumference. A semi-circle is half, and a quadrant one fourth, of a circle. ,*., , • •('•• II. A **Diameter of a circle is a straight line drawn through the centre, and terminated** both ways by the circumference. A Radius is a straight line extending from the centre to the circumference.... | |
| John Playfair - Euclid's Elements - 1819 - 333 pages
...circumference, are equal to one another. XII. And this point is called the centre of the circle. XIII. A **diameter of a circle is a straight line drawn through the centre, and terminated** both ways by the circumference. « XIV. A semicircle is the figure contained by a diameter and the... | |
| William Hawney - Geometry - 1820 - 312 pages
...if unequal, they are called irregular Polygons, or Figures. 34. The diameter of a circle is a right **line drawn through the centre, and terminated by the...circumference both ways ; thus AB is a diameter of** the circle. The diameter divides the surface, and circumference, into two equal parts, each of which... | |
| Peter Nicholson - Architecture - 1823 - 210 pages
...CENTRE of the circle. Thus, in Jig. 26, c is the centre, and cd the radius of the circle ab d. 36. **The DIAMETER of a circle is a straight line, drawn...through the centre, and terminated by the circumference** ; as the line ab, fig. 27. 37. A CHORD of a circle is a straight line, drawn through the circle, and... | |
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