| Edward Edwards - Perspective - 1806 - 313 pages
...properties of right lines and angles, it will be neceflary to fpeak of the circle. A CIRCLE is a 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... | |
| Robertson Buchanan - Gearing - 1808 - 164 pages
...which meeting do not 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,...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
...the extremity of "any thin?." H. A figure is that which is 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... | |
| Charles Butler - Mathematics - 1814
...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 - 294 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 - Circle-squaring - 1819 - 333 pages
...space contained in a figure, i.mj reference, to the nature of the line or lines which bound it. XI. **A circle is a plane figure contained by one line,...figure to the circumference, are equal to one another.** XII. And this point is called the centre of the circle. XIII. A diameter of a circle is a straight... | |
| John Mason Good - 1819
...ia the extremity of any thing" 14. A figure is that which is inclosed by one or more boundaries. 15. **A circle is a plane figure contained by one line, which is called the circumference,** mid is such that all straight lines dra'.vn from a cenain |X)int within the figure ю the circumference,... | |
| Euclid - 1822 - 179 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 - 588 pages
...which meeting do not lie 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,...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 - 1826 - 180 pages
...is the extremity of any thing. 14. A figure is that which is contained under one or more terms. 15. **A circle is a plane figure contained by one line, which is called the circumference,** to which all right lines drawn from one point within the figure are equal to one another. ' 16. And... | |
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