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" CIRCLES. A circle is a plane figure bounded by a curved line, every point of which is equally distant from a point within called the center. The curve which bounds the circle is called the circumference. "
Cyclopedia of Carpentry and Contracting ...: Architectural drawing ... - Page 59
1910
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Elements of Geometry, Geometrical Analysis, and Plane Trigonometry ...

Sir John Leslie - Geometry, Analytic - 1809 - 524 pages
...describing line its radius, and the boundary traced by the remote end of that line its circumference. 3$. The diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. It is obvious that all radii of the same circle...
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A Treatise on Surveying, Containing the Theory and Practice: To which is ...

John Gummere - Surveying - 1814 - 346 pages
...radius of a circle is a straight line drawn from the centre to the circumference, as CB, Fig. 1735. The diameter of a circle is a straight line drawn through the centre, and terminated both wajs by the circumference, as AB, Fig. 17. It divides the circle into two...
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The complete measurer: or, The whole art of measuring, containing the ...

Thomas Keith - 1817 - 304 pages
...angles are equal, they are called regular polygons; if unequal, they are called irregular polygons. 34. The Diameter of a circle is a straight line drawn through the centre, and terminated by the circumference both ways ; thus AB is a diameter of th« circle. The diameter...
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Practical Essays on Mill Work and Other Machinery, Volume 1

Robertson Buchanan - Machinery - 1823 - 588 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....
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The New Practical Builder and Workman's Companion, Containing a Full Display ...

Peter Nicholson - Architecture - 1823 - 596 pages
...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...
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An Introduction to Ancient and Modern Geography: To which are Added Rules ...

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 «ide of the circumference to the other. -j A semidiameter, or radius, is half of (he...
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Elements of Arithmetic, Algebra, and Geometry

George Lees - 1826 - 272 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...
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A Treatise on the New Method of Land Surveying, with the Improved Plan of ...

Thomas Hornby (land surveyor.) - Surveying - 1827 - 270 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...
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An Introduction to Geography and the Use of the Globes, for the Use of Schools

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...
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A Treatise of Plane Trigonometry: To which is Prefixed a Summary View of the ...

Jeremiah Day - Logarithms - 1831 - 418 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 center, and terminated both ways by the circumference. A Radius is a straight line extending from the center to...
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