 | John Davis (of Providence, R.I.) - Circle-squaring - 1854 - 168 pages
...the circle. The radius of a circle is a straight line drawn from the centre to the circumference. The radius of a sphere is a straight line drawn from the centre to the surface. An angle is the opening between two lines which meet each other at a point. One straight line is perpendicular... | |
 | Charles Davies - Geometry - 1854 - 436 pages
...sphere, any circular sector, as DCF, or FCA, describes a solid, called a spherical sector. 11. The radius of a sphere is a straight line drawn from the centre to any point of the surface ; the diameter or axis is a line passing through the centre, and terminated,... | |
 | William Somerville Orr - Science - 1854 - 534 pages
...by a surface, of which every point is equally distant from a point within it called the centre. The radius of a sphere is a straight line drawn from the centre to any point in the sphere. IV. A straight line drawn through the centre, and terminated both ways by... | |
 | Thomas Lund - Geometry - 1854 - 520 pages
...measures the distance from the centre to the circumference is called the radius of the circle. Any straight line drawn through the centre and terminated both ways by the circumference is called a diameter of the circle. Thus, in the fig. here traced, the area or surface... | |
 | Jeremiah Day - Logarithms - 1855 - 344 pages
...circumference. A semi-circle is half, and a quadrant onefourth of a circle. II. A Diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. A Radius is a straight line extending from the centre to the circumference. A Chord... | |
 | Robert Rawson - 1856 - 178 pages
...to one another. XVL And this point is called the centre of the circle. XVH. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. xvin. A semicircle is the figure contained by a diameter and the par* of the circumference... | |
 | George Roberts Perkins - Geometry - 1856 - 460 pages
...described in this movement by the curve DAE will have all its points equally distant from the centre C. The radius of a sphere is a straight line drawn from the centre to any point in the surface ; the diameter, or axis, is a line passing through this centre, and terminated... | |
 | Mechanical engineering - 1855 - 420 pages
...is a straight line drawn from the centre to the circumference, as O B. 4. The diameter of a circle is a straight line drawn through the centre, and terminated both ways at the circumference, as CO A. 5. A chord is a straight line joining any two points of the circumference,... | |
 | Euclides - 1858 - 248 pages
...The straight lines from the centre to the circumference are radii. 17. A diameter of a circle is any straight line drawn through the centre, and terminated both ways« by the circumference ; as AB, or DE, in the circle AD BE. A diameter is double of a radius. 18. A semicircle... | |
 | Isaac Todhunter - Spherical trigonometry - 1859 - 156 pages
...sphere. The straight line which joins any point of the surface with the centre is called a radius. A straight line drawn through the centre and terminated both ways by the surface is called a diameter. 2. Tliz section of the surface of a sphere made by any plane is a circle. Let... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
