| Association for the improvement of geometrical teaching - Geometry, Modern - 1884 - 150 pages
...3. A circle may be drawn with any centre, with a radius equal to any finite straight line. DEF. 41. **A circle is a plane figure contained by one. line,...circumference, and is such that all straight lines drawn** from a certain point within the figure to the circumference are equal to one another. This point is... | |
| Arthur Machen - Smoking - 1884 - 104 pages
...the material part or genus, and the formal part or differentia. Now the definition of a circle is " **A circle is a plane figure contained by one line which is called the circumference,"** which definition " a plane figure" is the genus, and " contained by one line" the differentia ; and... | |
| James Bailey Andrews - Circle-squaring - 1884 - 40 pages
..."Euclid's" definition of what constitutes a circle and its diameter — "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,... | |
| American periodicals - 1884 - 860 pages
...XV. A circle [cone of revolution with vertex at the eye] is a figure contained by one line [surface] **which is called the circumference, and is such that all straight lines** [angles] drawn from a certain point within the figure to the circumference are equal to one another.... | |
| Thomas Henry Eagles - Conic sections - 1885 - 401 pages
...is equal to four times the square on CB. CHAPTER II. THE CIRCLE. EUCLID'S well known definition is **"A circle is a plane figure contained by one line,...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... | |
| Thomas Henry Eagles - 1885 - 404 pages
...is equal to four times the square on CB. CHAPTER II. THE CIRCLE. EUCLID'S well known definition is " **A circle is a plane figure •contained by one line,...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... | |
| George William Usill - Surveying - 1889 - 306 pages
...greater than a right angle. 6. Acute Angle. — An acute angle is less than a right angle. 7. Circle. — **A circle is a plane figure contained by one line,...is called the circumference, and is such that all** lines drawn from a certain point within the figure to the circumference are equal to one another. 8.... | |
| Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...is the extremity of anything. 14. A Figure is that which is inclosed by one or more boundaries. 15. **A Circle is a plane figure contained by one line,...circumference, and is such that all straight lines drawn** from a certain point within the figure to the circumference are equal to one another. 16. And this... | |
| Euclid - Geometry - 1892 - 460 pages
...Book III. deals with the properties of Circles. DEFINITIONS. 1 . A circle is a plane figure bounded **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: this point is... | |
| Mines and mineral resources - 1894 - 330 pages
...all its sides equal, and its angles equal. rig. IB. A Circle is a plane figure contained or bounded **by one line which is called the circumference, and is such that all straight lines** from a certain point within the figure to the circumference are equal to one another. This point is... | |
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