| Edward Edwards - Perspective - 1806 - 414 pages
...plain figure contained by one line, which is called the circumference, and is fuch, that all ftraight **lines drawn from a certain point within the figure to the circumference, are equal to one another.** The point from which fuch lines are drawn, is called the center of the circle. A 'diameter of a circle,... | |
| Robertson Buchanan - Gearing - 1808 - 216 pages
...lie in one line. 2. A triangle is a figure contained by three straight lines. 3. A circle is a plane **figure contained by one line, which is called the...figure to 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... | |
| John Mason Good - 1813 - 714 pages
...inclosed by one qr more boundaries. 15. A circle is a plane figure contained by one line., which is railed **the circumference, and is such that all straight lines drawn from a** certiiu point within the figure to the circumference, агч equal to one another. 16. And this point... | |
| Charles Butler - Mathematics - 1814 - 528 pages
...figures as are contained by more than one line, as the triangle, square, polygon, &c. are excluded; **"and is such that all straight lines drawn from a certain point within the figure"** (called in the next following definition " the centre") to the circumference, are equal to one another... | |
| Daniel Cresswell - Geometry - 1816 - 352 pages
...OF A SPHERE AND A PLANE. DEFINITIONS. ART. 1. A- Sphere is a solid 'figure contained by one surface, **and is such that all straight lines, drawn from a certain point within the figure to the** surface, are equal to one another : (2.) And this point is called the Center of the Sphere. (3.) A... | |
| John Playfair - 1819 - 354 pages
...figure, without Any reference to the nature of the line or lines which bound it. XI. A circle is a plane **figure contained by one line, which is called the...figure to the circumference, are equal to one another.** And this point is called the centre of the circle. XIII. A diameter of a circle is a straight line... | |
| Euclid, Robert Simson - Geometry - 1821 - 514 pages
...thing." XIV. A figure is that which is inclosed by one or more boundaries. XV. A circle is a plane **figure contained by one line, which is called the...And this point is called the centre of the circle.** xy n. A diameter of a circle is a straight line drawn through the centre, and terminated both ways... | |
| Euclid - 1822 - 222 pages
...surface^ which is. bounded on all sides by one or more lines. 15. A circle is a plane figure bounded **by one line,, which is called the circumference, and is such that all** right lines drawn from a certain point within the figure, to the circumference, are equal to one another.... | |
| Robertson Buchanan - Machinery - 1823 - 440 pages
...in one line. 55. A triangle is a figure contained by three straight lines. 56. A circle is a plane **figure contained by one line, which is called the...figure to the circumference, are equal to one another,** and this point is called the centre of the circle. 57- The radius of a circle, is a straight line drawn... | |
| Euclid, Robert Simson - Geometry - 1829 - 548 pages
...thing." % . XIV' Jtf figure is that which is enclosed by one or more boundaries. XV. A circle is a plane **figure contained by one line, which is called the circumference, and is such that all straight** lihes drawn from a certain point within' the figure to the circumference, are equal to one another... | |
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