 | 1801 - 446 pages
...Heptagon. NonagQn, Decagon. Undecagpn^ Dodecagon. 44. A circle is a plane figure, bounded by a curve line, called the circumference, which is every where equidistant from a certain point within, called the centre* NOTE. The circumference itself ii often called a circle. 4545. The radius of a circle... | |
 | John Aikin - 1807 - 442 pages
...Appendix » - ."591 INTRODUCTION. Definitions respecting the Circle and Sphere. 1. A circle is a plain figure bounded by a curved line, called the 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... | |
 | Charles Hutton - 1816 - 610 pages
...When both these are equal, it is a regular figure. 45. A Circle is a plain figure bounded by a curve line, called the Circumference, which is every where equidistant from a certain point within, called its Centre The circumference itself is often called a circle, and also the Periphery 46. The... | |
 | Charles Hutton - 1822 - 616 pages
...Whea both these are equal, it is a regular figure. 46. A Circle is a plain figure bounded by a curve line, called the Circumference, which is every where equidistant from a certain point within, called its Centre. The circumference itself is often called a circle, and also the Periphery. 46. The... | |
 | Anthony Nesbit, W. Little - 1822 - 916 pages
...48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. An ellipse is a plane figure bounded by a curved line, called the circumference; but as the figure is not a circle, it is described from two points in the loneest diameter, called... | |
 | Anthony Nesbit - 1824 - 476 pages
...48. The arc of a quadrant contains 90 degrees, which is the measure of a right angle. 49. Ap ellipse is a plane figure bounded by a curved line, called the circumference ; but as the figure is not a circle, it is described from two points in the longest diameter, called... | |
 | Arthur Parsey - 1831 - 242 pages
...and irregular figures when the sides differ in length. A circle is a plane figure bounded by a curve line, called the circumference, which is every where equidistant from a certain point within, called the centre. The circumference of every circle is supposed to be divided into three hundred and... | |
 | Peter Nicholson - 1832 - 424 pages
...former being called a trigon, and the latter a tetragon. A circle is a plane figure, bounded by a curve line, called the circumference, which is every where equi-distant, from a certain point within, called its centre. The radius of a circle is a right line drawn from the centre to the circumference.... | |
 | Joseph Guy - 1832 - 412 pages
...investigation of the causes of their motions, &c. A Circle is a plain figure, bounded by a uniform curve line, called the circumference, which is every where equidistant from a certain point within, called its centre, as ABCD (pl. 1. fig. 1.) The circumference itself is often called a circle, and... | |
 | Edward Shaw - 1832 - 402 pages
...called a trigon, and the latter a tetragon. P V E 2. 42. A circle is a plane figure, bounded by a curve line, called the circumference, which is every where equidistant from a certain point within, called its centre. 43. The radius of a circk is a right line drawn from the centre to the circumference,... | |
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A Circle is a plane figure bounded by a curved line called the circumference, every point of which is equally distant from a point within called the centre ; as ABD E. 2. 
