 | William E. Bell - Bridges - 1859 - 226 pages
...a point within, called the centre. 35. The circle is the surface bounded by the circumference. 36. A radius of a circle is a straight line drawn from the centre to the circumference. (The term radius is a Latin word, the plural of which is radii. Thus, we say one... | |
 | Elias Loomis - Calculus - 1859 - 320 pages
...from a' point within called the center. This bounding line is called the circumference of the circle. A radius of a circle is a straight line drawn from the center to the circumference. PROPOSITION I. — THEOREM. (33.) The equation of the circle, when the... | |
 | Charles Hutton - Mathematics - 1860 - 1020 pages
...the curve ABP will have all its points equally distant from the centre Ü 2. The radius of a sphere is a straight line drawn from the centre to any point on the surface. The diameter or axis of a sphere is a straight line drawn through the centre, and terminated... | |
 | George Payn Quackenbos - Physics - 1860 - 484 pages
...has an infinite number of diameters, all equal to each other. • ^ -; 8. A Radius (plural, radii) of a circle is a straight line drawn from the centre to the circumference ; as, ED, EC, EF, EA, E B. Every circle has an infinite number of radii, all equal... | |
 | George Payn Quackenbos - Physics - 1860 - 468 pages
...circle has an infinite number of diameters, all equal to each other. ! 8. A Radius (plural, radii) of a circle is a straight line drawn from the centre to the circumference; as, ED, EC, EF.EA, EB. Every circle has an infinite number of radii, all equal to... | |
 | George Payn Quackenbos - Physics - 1862 - 468 pages
...Every circle has an infinite number of diameters, all equal to each other. 3. A Radins (plural, radii} of a circle is a straight line drawn from the centre to the circumference; as, ED, EC, EF, EA, EB. Every circle has an infinite number of radii, all equal... | |
 | Euclides - 1865 - 80 pages
...line the RADIANT, and the boundary traced by the remote end of the line the CIRCUMFERENCE. 34. The RADIUS of a circle is a straight line drawn from the centre to the circumference. Cor. Hence all the radii of the same circle are equal, for each of them is equal... | |
 | Samuel Alsop - Surveying - 1865 - 440 pages
...diameter of a circle is a straight line through the centre, terminating in the c'rcumference. 58. The radius of a circle is a straight line drawn from the centre to the circumference. 59. A segment of a circle is any part B cut off by a straight line. Thus, ABCD is... | |
 | Leroy J. Blinn - Sheet-metal work - 1866 - 216 pages
...any Circle twice the diameter of another contains four times the area of the other. Fig. 7. 3. The radius of a circle is a Straight line drawn from the centre to the circumference, as BD, fig. 7. 4. The diameter of a circle is a Straight line drawn through the... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 424 pages
...circle is a straight line drawn through the centre, and terminated both ways by the circumference. [A radius of a circle is a straight line drawn from the centre to the circumference.] 18. A semicircle is the figure contained by a diameter and the part of the circumference... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
