 | Benjamin Greenleaf - Arithmetic - 1839 - 356 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 - 334 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... | |
 | Charles WATERHOUSE - Arithmetic - 1844 - 228 pages
...which is called the transverse, and the shortest, the conjugate diam. 26. A sector of a circle is a part of a circle bounded by an arc and two radii drawn to its extremities, as D, A, B, C of . the figure, and is less than 180°. 27. A segment of a circle includes the space... | |
 | Charles Haynes Haswell - Engineering - 1844 - 298 pages
...an arc and its chord. The Radius of a circle is a line drawn from the centre to the circumference. A Sector is any part of a circle bounded by an arc and its two radii. A Semicircle is half a circle. A Quadrant is a quarter of a circle. A Zone is a part... | |
 | Peter Nicholson - Geometry - 1845 - 430 pages
...bounded by an arc and its chord. A semicircle is half a circle, or a segment out offby 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 ita... | |
 | Robert Griffith Hatfield - Architecture - 1845 - 326 pages
...21.) 52. — A segment is any part of a circle bounded by an arc and its chord. (A, Fig. 21.) 53. — A sector is any part of a circle bounded by an arc and two radii, drawn to its extremities. (B, Fig. 21.) 54. — A quadrant, or quarter of a circle, is a sector having a quarter of the circumference... | |
 | Arithmetic - 1846 - 258 pages
...circumference? CASE X. To measure a sector of a circle. DEFINITION. — (<) The sector of a circle is a part of a circle bounded by an arc and two radii drawn to the extremities, see the figure ACB D. ACB the arc- AD, or DB the radii. RULE. — (2) Find the length... | |
 | James Wharton - 1847 - 224 pages
...chord. 41. A semicircle is half a circle. 42. A quadrant is the fourth part of a circle, as ADC. 43. A sector is any part of a circle, bounded by an arc and two radii. 44. An ellipse is a plane figure bounded by a curved line, called the circumference : x and Y are called... | |
 | Anthony Nesbit - Plane trigonometry - 1847 - 492 pages
...chord. T, 45. A semicircle is half of a cir- / cle, or a segment cut off by the diameter ; as AB C. 46. A sector is any part of a circle bounded by an arc, and two radii. 47. A quadrant is the fourth part of a circle, or a sector bounded by an arc and two radii at right... | |
 | Peter Nicholson, Joseph Gwilt - Architectural drawing Technique - 1848 - 750 pages
...chord, as D. 48. A semicircle is half the circle, or a segment cut oft' 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... | |
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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 arc, and the two radii perpendicular to each other. 
