 | Jeremiah Day - 1839 - 434 σελίδες
...any portion of the circumference. A semi-circle is half, and a quadrant one fourth, of a circle. II. A Diameter of a circle is a straight line drawn through the center, and terminated both ways by the circumference. A Radius is a straight line extending from the... | |
 | Euclides - 1840 - 192 σελίδες
...certain point within the figure, are equal. 13. That point is called the CENTRE of the circle. 14. A DIAMETER of a circle is a straight line drawn through the centre, and terminating on both sides in the circumference. 15. A SEMICIRCLE is the figure contained by the diameter... | |
 | Euclides - 1841 - 378 σελίδες
...circumference, are equal to one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part of the circumference cut off... | |
 | Euclides - 1842 - 316 σελίδες
...the circumference are equal to one another. XVL This point is called the centre of the circle. XVII, A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. A semidiameter of a circle is now usually called the radius. XVIII. A semicircle is the figure contained... | |
 | John Playfair - 1842 - 332 σελίδες
...circumference, are equal to one another . 12. And this point is called the centre of the circle. 13. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. 14. A semicircle is the figure contained by a diameter and the part of the circumference cut off by... | |
 | Roswell Chamberlain Smith - 1842 - 320 σελίδες
...from a certain point within it. called the CENTRE. An ARC is any part of the circumference. 35. The DIAMETER of a circle, is a straight line drawn through the centre and terminating in the circumference on each side. A Q. What is a Quadrilateral? 27. Parallelogram? 27.... | |
 | Philip Kelland - 1843 - 168 σελίδες
...therefore it appears not to be inconsistent with the Elements to adopt it in the former case too. • 14. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. Euclid adds, " which divides the circle into two equal parts. " This addition is in reality a theorem... | |
 | William Pease - 1843 - 80 σελίδες
...poles, the lineal length of each degree of longitude, depends upon its distance from the equator. XVII. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part of the circumference cut off... | |
 | Roswell Chamberlain Smith - 1843 - 320 σελίδες
...from a certain point within it, called the CENTRE. An ARC is any part of the circumference. 35. The DIAMETER of a circle, is a straight line drawn through the centre and terminating in the circumference on each side. A Fig. 14. Q. What is a Quadrilateral? 27.Parallelogram?... | |
 | Euclid - 1845 - 218 σελίδες
...circumference, are equal to one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part of the circumference cut off... | |
| |
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... 
