| Euclid - Euclid's Elements - 1833 - 183 pages
...6. And this point is called the centre of the circle. See N. 17. A diameter of a circle is a right **line drawn through the centre, and terminated both ways by the circumference. 18. A** radius of a circle is a right line drawn from the centre to the circumference. 19. A semicircle is... | |
| Thomas Perronet Thompson - Euclid's Elements - 1833 - 150 pages
...Any straight line drawn from the centre of a sphere to the surface, is called a radius of the sphere. **A straight line drawn through the centre and terminated both ways by the** surface, is called a diameter of the sphere. COB. A straight line may be described or made to pass... | |
| Tobias Ostrander - Measurement - 1834 - 159 pages
...of that circumference. A semicircle is half, and a quadrant is a quarter of a circle. The diameter **is a straight line drawn through the centre, and terminated both ways by the circumference.** PROBLEM I. To find the circumference of a circle, the diameter being given. Rule — Multiply the diameter... | |
| Euclid - 1835 - 540 pages
...circumference are equal to one another. XVI. And this point is calledihe 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 by a diameter and the part of the circumference cut off... | |
| Mathematics - 1836 - 472 pages
...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 the 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... | |
| Euclid - Geometry - 1837 - 410 pages
...The following, which is Euclid's definition of the semicircle, will perhaps be preferred by some : " **A semicircle is the figure contained by a diameter...part of the circumference cut off by the diameter."** It may be proved that a diameter divides a circle into two equal parts, by inverting one of them and... | |
| Andrew Bell - Euclid's Elements - 1837 - 240 pages
...circumference, are equal to one another. 15. This point is called the centre of the circle. 16. A diameter **of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.** 17. A line drawn from the centre to the circumference of a circle is called a radius. 18. A semicircle... | |
| John Playfair - Geometry - 1837 - 332 pages
...to one another. 12. And this point is called the centre of the circle. 13. A diameter of a circlets **a straight line drawn through the 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... | |
| Robert Simson - Geometry - 1838 - 434 pages
...are equal to one another : XVI. And this point is called the centre of the circle. xvn. . 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 by a diameter and the part of the circumference cut off... | |
| Euclides - 1838 - 264 pages
...circle, there will be no necessity to alter the phraseology of the work in this respect. XIV. A diameter **of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.** XV. A semicircle is the figure contained by a diameter, and the part of the circumference cut off by... | |
| |