| Anthony Nesbit, W. Little - Mensuration - 1822
...seconds, &c. 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,...not a circle, it is described from two points in the** loneest diameter, called the foci, or focuses. 50. The longest diameter that can be drawn within an... | |
| Leonard Dunnell Gale - Physics - 1838 - 276 pages
...b it will appear retrograde, and from 6 to c it will again appear stationary. Fig. 3. XV. A circle **is a plane figure bounded by a curved line, called the circumference,** every part of which is equally distant from the centre. XVI. The diameter of a circle is a line drawn... | |
| Roswell Chamberlain Smith - Arithmetic - 1842 - 306 pages
...distance round it; and is found by adding together all the sides that bound it. Fig. 14. 34. A CIRCLE **is a plane figure bounded by a curved line, called the Circumference** or Periphery ; which is every where equally distant from a certain point within it. called the CENTRE.... | |
| Roswell Chamberlain Smith - 1843
...entire distance round it; and is found by adding together all the sides that bound it. 34. A CIRCLE **is a plane figure bounded by a curved line, called the Circumference** or Periphery ; which is every where equally distant from a certain point within it, called the CENTRE.... | |
| John Thomas Crossley - 1845
...equiangular when all its angles are equal. When both these are equal, it is a regular figure. A Circle **is a plane figure bounded by a curved line, called the Circumference,** which is every where equidistant from a point within, called its Centre. The circumference is sometimes... | |
| James Wharton - 1847
...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 the foci, and the figure is such that sx + SY or xz +ZY are always = 2 QR. 45.... | |
| Anthony Nesbit - Technology & Engineering - 1847 - 426 pages
...polygon has all its sides and angles equal, they are unequal, the polygon is irregular. 38. A circle **is a plane figure, bounded by a curved line, called the circumference,** which is everywhere equidistant from a certain point within it, called the centre. 39. The circumference... | |
| John Radford Young - 1850
...we come to speak of those figures. It will be sufficient here merely to state that — 24. A CIRCLE **is a plane figure bounded by a curved line called the circumference** of the circle, which is such, that at every point of it, it is equally distant from a certain point... | |
| ROSWELL C. SMITH - 1850
...distance round it; and is found by adding together all the sides that Fig. 14. bound it. 34. A CIRCLE **is a plane figure bounded by a curved line, called the Circumference** or Periphery ; which is every where equally distant from a certain point within it, called the CENTRE.... | |
| Sir Henry Edward Landor Thuillier - Surveying - 1851 - 718 pages
...opposite. The Diagonals of a quadrilateral are the straight lines which join its opposite angles. A Circle **is a plane figure bounded by a curved line called the Circumference,** every part whereof is equally distant from a point within the same figure called the Centre, thus :... | |
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