 | Charles Hutton - Measurement - 1788 - 728 pages
...•yvidiin, called its center. NB The circumference itfelf is often called a circle. 3 2 45- The 45. The radius of a circle, is a right line drawn from the center to the circumference. 46. The diameter of a circle, is a right line drawn through the center,... | |
 | Euclid - Euclid's Elements - 1789 - 296 pages
...re&angle of AB, BH is equal to the fquare of AH, which was to be done. BOOK BOOK III. DEFINITIONS. I. A radius of a circle, is a right line drawn from the centre to the circumference. 2. A diameter of a circle, is a right line drawn through the centre and terminated both ways by the... | |
 | Mathematics - 1801 - 446 pages
...certain point within, called the centre* NOTE. The circumference itself ii often called a circle. 4545. The radius of a circle is a right line, drawn from the centre to the circumference. 46. The diameter of a circle is a right line, drawn through the centre, and terminating in the circumference... | |
 | Thomas Hodson - Arithmetic - 1806 - 502 pages
...line, called the circumference, which is every where equally diftant from the centre. See fig. ai. 30. The radius of a circle is a right line drawn from the centre to the circumference. 3 1. The diameter of a circle is a right line drawn through the centre, and bounded at each end by... | |
 | Robertson Buchanan - Gearing - 1808 - 216 pages
...the circumference, are equal to one another, and this point is called the centre of the circle. 4. The radius of a circle, is a right line drawn from the centre to the circumference. The word, radii, is used, when more than one such line is spoken of. 0 5. The diameter of a circle,... | |
 | Samuel Webber - Mathematics - 1808 - 466 pages
...certain point within, called the centre. N0TE. The circumference is often called a circle. itself 45. The radius of a circle is a right line, drawn from the centre to the cir- |T cumference. * 46. The diameter of a circle is a right line, drawn through the centre, said... | |
 | George Watson - Navigation - 1822 - 72 pages
...of a circle is a point within the circle, equally distant from all parts of the circumference. 164. The RADIUS of a circle is a right line drawn from the centre to the circumference ; and is half the diameter. 165. The DIAMETER of a circle is a right line drawn from one point in the... | |
 | Rev. John Allen - Astronomy - 1822 - 516 pages
...right line, passing through the centre, and terminated both ways by the circumference, (as AB). 14. A radius of a circle is a right line, drawn from the centre to the circumference, (as CD). 15. A semicircle, is a figure, contained by a diameter of a circle, and the part of the circumference... | |
 | Montgomery Robert Bartlett - Education - 1828 - 426 pages
...angular point. NOTE. 5. Tlic boundary line, A, B, D, is • ailed the circumference, or periphery. 11. The radius of a circle is a right line drawn from the centre to the circumference. As, C, A. NOTE. C. All radii of the same cirele are manifestly equal. 12. The diameter of a circle,... | |
 | John Bonnycastle - Geometry - 1829 - 256 pages
...right angle. 12. An obtuse angle is that which is greater than a right angle. PRACTICAL GEOMETRY. 15 13. A circle is a plane figure, formed by the revolution...right line drawn from the centre to the circumference. G 16. The diameter of a circle is a right line passing through the centre, and terminated both ways... | |
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The radius of a circle is a right line drawn from the centre to the circumference. 
