 | Charles Guilford Burnham - Arithmetic - 1841 - 324 pages
...which is called the centre. 11. The circumference, or periphery of a circle, is the bounding line. 12. The radius of a circle is a line drawn from the centre to the circumference. Therefore, all radii of the same circle are equal. 13. The diameter of a circle is a right line drawn... | |
 | Samuel Maunder - Encyclopedias and dictionaries - 1843 - 914 pages
...the circumference, which is every where equidistant from a certain point within, called its centre; the radius of a circle is a line drawn from the centre to the circumference; the diameter of a circle is a Hue drawn through the centre, and terminating at the circumference on... | |
 | Charles Haynes Haswell - Engineering - 1844 - 298 pages
...joining the extremities of an arc. A Segment of a circle is any part bounded by 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.... | |
 | Joseph Guy - Astronomy - 1845 - 370 pages
...as ABCD (pi. 1. fig. 1.) The circumference itself is often called a circle, and also the peri phery. The Radius of a circle is a line drawn from the centre to the circumference ; as AE, EB, or EC (fig. 1.) The Diameter of a circle is a line drawn through the centre, and terminated... | |
 | John Thomas Crossley - 1845 - 336 pages
...equidistant from a point within, called its Centre. The circumference is sometimes called the Periphery. The Radius of a circle is a line drawn from the centre to the circumference. The Diameter of a circle is a line drawn through the centre, and terminating at the circumference on... | |
 | Anna Cabot Lowell - Astronomical models - 1846 - 122 pages
...circle ? A circle is a plain figure, bounded by a uniform curve line. What is the radius of a circle 1 The radius of a circle, is a line drawn from the centre to the circumference. What is the diameter of a circle ? A line drawn through the centre, and terminated at both ends by... | |
 | William Vogdes - Arithmetic - 1847 - 324 pages
...any portion of the circumference. 32. A semicircle is half, and a quadrant, quarter of a circle. 33. The radius of a circle is a line drawn from the centre to the circumference. 34. The diameter of a circle, is a right line drawn through the centre, terminated both ways by the... | |
 | Uriah Parke - Arithmetic - 1849 - 414 pages
...being equal to the radius, and hence it is .5; so that the curve exceeds the straight line by .0236. The radius of a circle is a line drawn from the centre to the circumference, as a ray emanating from the centre, and if these radii be drawn from the centre to every part of the circumference,... | |
 | Almon Ticknor - Arithmetic - 1849 - 170 pages
...circumference. 32. A semicircle is half a circle ; a quadrant a quarter of a circle. (Fig. 17.) 33. The radius of a circle is a line drawn from the centre to the circumference. (Fig. 17.) 34. A chord is a straight line shorter than the diameter, and joins the extremities of an... | |
 | William Minifie - Geometry, Descriptive - 1849 - 278 pages
...circle is a point within the circumference, equally distant from every pqint in it, as C, fig. 1. 4. The RADIUS of a circle is a line drawn from the centre to any point in the circumference, as С. А, С. В or C. D, fig. 1. The plural of Radius is RADII. All... | |
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The radius of a circle is a line drawn from the centre to the circumference, as A, B. 
