| John Dougall - Education - 1810 - 580 pages
...centre to the circumference, is called a radius, as CA, CB, CH, and CD, in fig. 22 ; and any right **line passing through the centre, and terminated both ways by the circumference,** is called a diameter, as ACD, which is double the length of the radius, for AC being equal to CD, the... | |
| Rev. John Allen - Mathematics - 1822 - 494 pages
...bounding line (ADBA), is called its circumference or periphery. 13. A diameter of a circle, is a 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... | |
| John Bonnycastle - Geometry - 1829 - 252 pages
...a 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 by the circumference.** * NB The circumference itself, for the sake of conciseness, is sometimes called a circle. i PRACTICAL... | |
| Thomas Curtis - Encyclopedias and dictionaries - 1829
...circumference itself is also often called a circle. Fig. 20. 31. The DIAMETER of a circle is a straight **line passing through the centre, and terminated both ways by the circumference.** 32. An ARC of a circle is any part of its circumference. Fig. 21. 33. A CHORD is a straight line joining... | |
| Pierce Morton - Geometry - 1830 - 272 pages
...circumference is called the ra. diux, or, sometimes, the semidiameter, because it is the half of a straight **line passing through the centre and terminated both ways by the circumference,** which straight line is called a diameter. The point С is the centre of the circle ABD ; AB is a diameter... | |
| William Ruger - Arithmetic - 1836 - 263 pages
...diameter of one 4 times as large ? Ans. 24 inches. , NOTE. — The diameter of a circle, is a right **line passing through the centre, and terminated both ways by the circumference.** A, B, is the diameter of the circle A,/, B, e ; and c, d, is the diameter, of the smaller circle, c,... | |
| Charles Reiner - 1837
...centre ? P.—No; for, then, there would be radii not equal to one another. M.—And, what is a straight **line passing through the centre and terminated both ways by the circumference** called ? P.—A diameter of the circle. M.—Compare the portions of a circle obtained by drawing a... | |
| Commissioners of National Education in Ireland - 1837
...regular polygon ; but if unequal, an irregular polygon. 34. The Diameter of a circle is a straight **line passing through the centre, and terminated both ways by the circumference** ; thus AB is the diameter of the circle. The diameter divides the circle into two equal parts, each... | |
| William Ruger - Arithmetic - 1841 - 263 pages
...the diameter of one 4 times as large ? Ans. 24 inches. NOTE. — The diameter of a circle, is a right **line passing through the centre, and terminated both ways by the circumference.** A, B, is the diameter of the circle A,/, B, e; and c, d, is the diameter, of the smaller circle, c,... | |
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