 | Robert Simson - Trigonometry - 1804 - 530 pages
...thing." XIV. A figure is that which is inclofed by one or more boundaries XV. Book 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... | |
 | 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...And this point is called the centre of the circle. XVH. A diameter of • circle is a straight line drawn through the centre, and terminated both ways... | |
 | John Playfair - Mathematics - 1806 - 320 pages
...right angle. X. A figure is that which is inclosed by one or more boundaries. XL A circle is a plane figure contained by one line, which is called the...figure to the circumference are equal to one another. XII. And this point is called the centre of the circle. XHL A diameter of a circle is a straight line... | |
 | Edward Edwards - Perspective - 1806 - 414 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 - 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... | |
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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. 
