| Mathematics - 1801
...circle, or a segment cut off by a diameter. 51. A sector is any part of a .circle, bounded by an arc, ^nd **two radii, drawn to its extremities. 52. A quadrant, or quarter of a circle, is a** sector, having a quarter of the circumference for its arc, and its two radii are perpendicular to each... | |
| Isaac Dalby - Mathematics - 1807
...segment cut off by a diameter. Half the circumference is sometimes called a semicircle. 56. A sector **is any part of a circle bounded by an arc and two radii drawn to its extremities.** Thus if C be the centre, ACB is a sector. When the angle at C is right, the sector (and sometimes the... | |
| Samuel Webber - Mathematics - 1808
...and its chord. 50. A semicircle is half the circle, or a segment cut oil" by a diameter. 51. A sector **is any part of a circle, bounded by an arc, and two...extremities. 52. A quadrant, or quarter of a circle, is a** sector, having a quarter of the circumference for its arc, and its two radii are perpendicular to each... | |
| Peter Nicholson - 1809
...48. A semicirde is half the circle , or a segment cut off by the diameter; ,as E. . ,. ; 49. A sector **is any part of a circle bounded by an arc and two radii, drawn to its extremities,** as F. /. .', 50. A quadrant, or quarter of a circle, is a sector, having a quarter of the circumference... | |
| Anthony Nesbit - Measurement - 1824 - 434 pages
...cut off by the diameter, as ADB. 45. A quadrant is the fourth part of a circle, as ADC. 46. A sector **is any part of a circle bounded by an arc and two radii.** 47. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees... | |
| Edward Shaw - Architecture - 1832 - 192 pages
...as D. 48. A semi-circk is half the circle, or a segment cut off by the diameter, as E. 49. A sector **is any part of a circle bounded by an arc and two radii, drawn to its extremities,** as F. 1 50. A quadrant, or quarter of a circle, is a sector, having a quarter of the circumference... | |
| Peter Nicholson - Building - 1832 - 333 pages
...an arc and its chord. A semicircle is half a circle, or a segment cut off by the diameter. A sector, **is any part of a circle bounded by an arc, and two radii, drawn to its extremities.** A quadrant, or quarter of a circle, is a sector having a quarter part of the circumference for its... | |
| Edward Shaw - Architecture - 1836 - 208 pages
...as D. 48. A semi-circle is half the circle, or a segment cut off by the diameter, as E. 49. A sector **is any part of a circle bounded by an arc and two radii, drawn to its extremities,** as F. 50. A quadrant, or quarter of a circle, is a sector, having a quarter of the circumference for... | |
| Benjamin Greenleaf - Arithmetic - 1839 - 305 pages
...half circumference is sometimes called the semicircle, as A, G, C. 51. A sector is any part of the **circle bounded by an arc and two radii drawn to its extremities,** as A, B, H. 52. A quadrant, or quarter of a circle is a sector, having a quarter of its circumference... | |
| Benjamin Greenleaf - Arithmetic - 1841 - 314 pages
...half circumference is sometimes called the semicircle, as A, G, C. 51. A sector is any part of the **circle bounded by an arc and two radii drawn to its extremities,** as A, B, H. 52. A quadrant, or quarter of a circle is a sector, having a quarter of its circumference... | |
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