 | William E. Bell - Bridges - 1859 - 226 pages
...polygons are those which coincide with each other in all their parts. (Ax. 13.) 32. Similar polygons have the angles of the one equal to the angles of the other,...(The term radius is a Latin word, the plural of which is radii. Thus, we say one radius and two radii.) 1n the same circle all radii are equal ; all diameters... | |
 | 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... | |
 | 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 to each other. The... | |
 | 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 each other. The radius... | |
 | 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 to each other. The... | |
 | 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 to the radiant. 35.... | |
 | 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 a segment. Fig. 6.... | |
 | 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 centre and terminated... | |
 | 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 cut off by... | |
 | Euclid, Isaac Todhunter - Euclid's Elements - 1867 - 426 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 cut off by... | |
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A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 
