| Charles Hutton - 1788 - 703 sider
...•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 - 1789 - 272 sider
...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... | |
| Samuel Webber - 1801
...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 - 1806 - 458 sider
...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 - 1808 - 164 sider
...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 - 1808
...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 - 1822 - 4 sider
...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 - 1822 - 494 sider
...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 - 1828
...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,... | |
| Arthur Parsey - 1831
...minutes, &c. Hence a semi-circle contains 180 deg., and a quadrant, or quarter of a circle, 90 degrees. **The radius of a circle is a right line drawn from the centre to the circumference.** (AB, plate 8.) The diameter is a right line drawn through the centre, and terminating in the circumference... | |
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