 | Richard Wormell - 1876 - 268 páginas
...given, to describe the circle of which it is the segment. .. .. .. .. .. .. .. .. 132 30. To bisect a given arc ; that is, to divide it into two equal parts. . . . . 132 34. To cut off a segment from a given circle which shall contain an angle equal to a given... | |
 | Isaac Todhunter - 1880 - 426 páginas
...[I. 4. Wherefore, in equal circles &c. QED PROPOSITION 30. PROBLEM. To bitect a given are, that it, to divide it into two equal parts. Let ADB be the given arc : it ia required to bisect it. Join AB; bisect it at C; [I. 10. from the point C draw CD at right angles... | |
 | Euclides - 1881 - 236 páginas
...equal arc* are subtended by equal straight line*. PROP. XXX. PROBLEM. To bitect a given are , that it, to divide it into two equal parts. Let ADB be the given arc. It is required to bisect it. Join AB, and bisect (I. 10) it at C. From the point C, draw CD at right angles (I. 11) to... | |
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To bisect a given arc, that is, to divide it into two equal parts. Let ADB be the given arc : it is required to bisect it. 
