 | Thomas Hornby (land surveyor.) - 1827 - 318 σελίδες
...the line A C. Hence, the radius is the line or distance that describes the circumference. i 31. The diameter of a circle is a straight line, drawn through the centre, cutting the figure into two equal parts ; as the line A B. 32. A semicircle is half of a whole circle;... | |
 | John Playfair - 1829 - 210 σελίδες
...circumference, and all straight lines drawn from the centre to the circumference are equal to one another. 21. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference; and a radius is a straight line drawn from the centre to the circumference. 22. A semicircle is the... | |
 | James Charlton - 1829 - 250 σελίδες
...20. The RADIUS of a circle is a line drawn from the j - , ^. • centre to the circumference. 21. The DIAMETER of a circle is a straight line drawn ; through the centre, and terminating at the circumfet rence on both sides!! " 22. A SPHERE, or globe, is a perfectly round body,... | |
 | Ira Wanzer - 1831 - 408 σελίδες
...every part of which is equally distant from a certain point within the circle, called the centre. The diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. 21. An ellipse, or ellipsis, is an oval , figure, resembling a circle, only the length exceeds the... | |
 | Jeremiah Day - 1831 - 418 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... | |
 | Jeremiah Day - 1831 - 520 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... | |
 | John Playfair - 1832 - 358 σελίδες
...to one another. XII. And this point is called the centre of the circle. XIII. Adiameter of acircle is a straight line drawn through the centre, and terminated both ways by the circumference. \ XIV. A semicircle is the figure contained by a diameter and the part the circumference cut off by... | |
 | Tobias Ostrander - 1833 - 172 σελίδες
...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... | |
 | Thomas Perronet Thompson - 1833 - 168 σελίδες
...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... | |
 | Euclid - 1833 - 216 σελίδες
...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... | |
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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... 
