 | Robertson Buchanan - 1823 - 440 ページ
...centre to the circumference. The word radii is used, when more than one such line is spoken of. 58. The diameter of a circle, is a straight line drawn through...centre, and terminated both ways by the circumference. 59- The arc of a circle is any part of its circumference. 60. A chord of an arc, is a straight line... | |
 | Peter Nicholson - 1823 - 210 ページ
...CENTRE of the circle. Thus, in Jig. 26, c is the centre, and cd the radius of the circle ab d. 36. The DIAMETER of a circle is a straight line, drawn through the centre, and terminated by the circumference ; as the line ab, fig. 27. 37. A CHORD of a circle is a straight line, drawn through... | |
 | Jeremiah Day - 1824 - 440 ページ
...any portion of the circumference. A semi-circle is half, and a quadrant one-fourth, of a circle. II. A Diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference/ A Ifatlius is a straight line extending from the centre to the circumference. A Chord is a straight... | |
 | Peter Nicholson - 1825 - 1046 ページ
.../" i rence, are equal to one another. \ / 16. And this point is called the centre of the circle. 17- A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. 1 8. A semicircle is the figure contained by a diameter and the part of a circumference cut off by... | |
 | Jacob Abbot Cummings - 1825 - 216 ページ
...illustrated by drawing a silk handkerchief over a wire circle, which will thus represent the plane. The diameter of a circle is a straight line drawn through the centre from one «ide of the circumference to the other. -j A semidiameter, or radius, is half of (he diameter,... | |
 | George Lees - 1826 - 276 ページ
...the boundary traced by the remote end of that line its circumference. ELEMENTS Book I. XIV.— The diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. Cor. All radii of the same circle are equal to each other, and to a semi-diameter. XV. — A semicircle... | |
 | Euclides - 1826 - 226 ページ
...16. And this point is called the centre of the circle. 17. A diameter of a circle is a certain right line drawn through the centre, and terminated both ways by the circumference of the circle, and divides the circle into two equal parts. 18. A semicircle is the figure contained... | |
 | Euclid - 1826 - 234 ページ
...16. And this point is called the centre of the circle. 17. A diameter of a circle is a certain right line drawn through the centre, and terminated both ways by the circumference of the circle, and divides the circle into two equal parts. 18. A semicircle is the figure contained... | |
 | Thomas Hornby (land surveyor.) - 1827 - 318 ページ
...the line A C. Hence, the radius is the line or distance that describes the circumference. i 31. The diameter of a circle is a straight line, drawn through the centre, cutting the figure into two equal parts ; as the line A B. 32. A semicircle is half of a whole circle;... | |
 | John Playfair - 1829 - 210 ページ
...circumference, and all straight lines drawn from the centre to the circumference are equal to one another. 21. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference; and a radius is a straight line drawn from the centre to the circumference. 22. A semicircle is the... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
