| John Playfair - Mathematics - 1806 - 320 pages
...is inclosed by one or more boundaries. XL A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight...lines drawn from a certain point within the figure to the circumference are equal to one another. XII. And this point is called the centre of the circle.... | |
| Robert Simson - Trigonometry - 1806 - 546 pages
...boundaries. XV. Book I. A circle is a plane figure contained by one line, which is called l •»•j< the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference, are equal to one another:. XVI. And this point is called the centre of the circle.... | |
| Robertson Buchanan - Gearing - 1808 - 216 pages
...figure contained by three straight lines. 3. A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight...lines drawn from a certain point within the figure to the circumference, are equal to one another, and this point is called the centre of the circle.... | |
| 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... | |
| Euclides - 1814 - 560 pages
...inclosed by one or more boundaries. XV. A circle is a plane figure contained by one line, winch is called the circumference, and is such that all straight...lines drawn from a certain point within the figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle.... | |
| 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 : this... | |
| 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.... | |
| John Playfair - Circle-squaring - 1819 - 350 pages
...of the line or lines which bound it. XI. A circle is a plane figure contained by one line, which is called the circumference, and is such that all straight...lines drawn from a certain point within the figure to the circumference, are equal to one another. XII. And this point is called the centre of the circle.... | |
| Robertson Buchanan - Machinery - 1823 - 440 pages
...figure contained by three straight lines. 56. A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight...lines drawn from a certain point within the figure to the circumference, are equal to one another, and this point is called the centre of the circle.... | |
| Robert Simson - Trigonometry - 1827 - 546 pages
...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...lines drawn from a certain point within the figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle.... | |
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