 | Euclides - 1847 - 128 pages
...circumference, are equal to one another : — 16. And this point is called the centre of the circle. 17. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 18. A semicircle is the figure contained by... | |
 | Jeremiah Day - Logarithms - 1848 - 354 pages
...periphery. An arc is any portion of the circumference. A semi.circle is half, and a quadrant onefourth of a circle. II. A Diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. A Radius is a straight line extending from the... | |
 | Charles Richson - 1848 - 98 pages
...of the circle." (A pair of dividers or compasses will be useful in explaining this definition.} 2. "A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. ' ' 3. "A semicircle is the figure contained... | |
 | Euclides - 1848 - 52 pages
...circumference, are equal to one another. XVI. And this point is called ttas centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained... | |
 | Elias Loomis - Conic sections - 1849 - 252 pages
...C. The point C is the center of the ellipse ; and , i CF or CF' is the eccentricity. ' 5. A diameter is a straight line drawn through the center, and terminated both ways by the curve. by the curve; DD' is a diameter of the ellipse; D and D' are its vertices. 6. The extremities... | |
 | Euclid, Thomas Tate - 1849 - 120 pages
...circumference are equal to one another. A VI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained... | |
 | Minard Lafever - Architecture - 1849 - 306 pages
...every where equi-distant from a certain point within the circle, called the centre. (Fig. 23.) XXXI. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. (Fig. 23.) XXXII. A radius of a circle is half... | |
 | Elias Loomis - Calculus - 1851 - 300 pages
...ellipse. The center of the ellipse is the middle point of the straight line joining the foci. A diameter is a straight line drawn through the center and terminated both ways by the curve. The major axis is the diameter which passes through the foci. The minor axis is the diameter... | |
 | Euclides - 1852 - 152 pages
...centre of the circle. [In the above figures A is the centre of the circle; B is not the centre.] XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained... | |
 | Euclid - Geometry - 1853 - 176 pages
...circumference. 16. A RADIUS of a circle is a straight line drawn from the center to the circumference, 17. A DIAMETER of a circle is a straight line drawn through...center and terminated both ways by the circumference. SCHOLIUM. Thus the curved line ABCDF is the circumference of a circle, of which E is the center, BD... | |
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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 : 16. And this point is called the centre... 
