 | Robertson Buchanan - Machinery - 1823 - 440 pages
...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 the centre, and terminated both ways by the circumference. 59- The arc of a circle is any part of its circumference. 60. A chord... | |
 | Jeremiah Day - Geometry - 1824 - 440 pages
...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 the centre, and terminated both ways by the circumference/ A Ifatlius is a straight line extending from the centre to the circumference.... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...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 the centre, and terminated both ways by the circumference. 1 8. A semicircle is the figure contained by a diameter and the part... | |
 | Jacob Abbot Cummings - Cartography - 1825 - 216 pages
...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 Ģide of the circumference to the other. -j A semidiameter, or radius, is half of (he diameter,... | |
 | George Lees - 1826 - 276 pages
...and 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 the centre, and terminated both ways by the circumference. Cor. All radii of the same circle are equal to each other, and to a... | |
 | Thomas Hornby (land surveyor.) - Surveying - 1827 - 318 pages
...as 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;... | |
 | James Charlton - Geography - 1829 - 250 pages
...nearly. 20. The RADIUS of a circle is a line drawn from the j - , ^. • centre to the circumference. 21. The DIAMETER of a circle is a straight line drawn ; through the centre, and terminating at the circumfet rence on both sides!! " 22. A SPHERE, or globe, is a perfectly round body,... | |
 | John Playfair - Geometry - 1829 - 210 pages
...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 the centre, and terminated both ways by the circumference; and a radius is a straight line drawn from the centre to the circumference.... | |
 | Ira Wanzer - Arithmetic - 1831 - 408 pages
...periphery, every part of which is equally distant from a certain point within the circle, called the centre. The diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 21. An ellipse, or ellipsis, is an oval , figure, resembling a circle,... | |
 | Euclid - 1835 - 540 pages
...circumference are equal to one another. XVI. And this point is calledihe centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
