| George Crabb - 1831 - 426 pages
...contained within its boundaries. Of curvilinear figures in common geometry is the circle, which if **a plane figure bounded by a curve line called the circumference, which is** equally distant from a point called the centre. The diameter of a circle is a straight line drawn from... | |
| Peter Nicholson - 1832 - 424 pages
...square is one of the four; the former being called a trigon, and the latter a tetragon. A circle is **a plane figure, bounded by a curve line, called the...within, called its centre. The radius of a circle is a** right line drawn from the centre to the circumference. A diameter of a circle is a right line, drawn... | |
| Edward Shaw - 1832 - 402 pages
...one of four ; the former being 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...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, as ab, at A.... | |
| 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...equidistant from a certain point within, called its centre,** as ABCD (pl. 1. fig. 1.) The circumference itself is often called a circle, and also the periphery.... | |
| William Grier - 1832 - 366 pages
...figure. DEFINITIONS. The circumference itself is often called a circle, and also the Periphery. 46. **The Radius of a circle is a line drawn ' from the centre to the circumference.** 47. The Diameter of a circle is a line drawn through the centre, and terminating at the circumference... | |
| Abel Flint - 1835 - 368 pages
...Fig. 4. 11. The circumference or periphery of a circle is the bounding line ; as ADEB. Fig. 4. 12. **The radius of a circle is a line drawn from the centre to the circumference** ; as CB. Fig. 4. Therefore all radii of the same circle are equal. 13. The diameter of a circle is... | |
| William Grier - 1836 - 384 pages
...equiangular when all its angles are equal. When both these are equal, it is a regular figure. 45. A Circle is **a plane figure bounded by a curve line, called the Circumference, which is** everywhere equidistant from a certain point within, called its Centre. circumference itself is often... | |
| Edward Shaw - 1836 - 438 pages
...four ; the former being called a trigon, and the latter a tetragon. /•Л PLATE 2. 42. A circle is **a plane figure, bounded by a curve line, called the circumference, which is** everywhere equidistant from a certain point within, called its centre. 43. The radius of a circle is... | |
| William Grier - 1836 - 380 pages
...equiangular when all its angles are equal. When both these are equal, it is a regular figure. 45. A Circle is **a plane figure bounded by a curve line, called the Circumference, which is** everywhere equidistant from a certain point within, called its Centre. 'cumference itself is often... | |
| Benjamin Greenleaf - 1839 - 356 pages
...equilangular, when all its angles are equal. When both these are equal, it is a regular figure. 44. A circle is **a plane figure, bounded by a curve line, called the...which is every where equidistant from a certain point,** called its centre. The circumference itself is often called a circle, and also the periphery. 45. The... | |
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