 | Olinthus Gilbert Gregory - 1848 - 572 pages
...B will be the perpendicular required. (Fig. 08.) PROB. III. To bisect any given angle AC B. From C as a centre, with any radius, describe an arc cutting the sides in D and E ; then from D and E, as centres with the same radius, describe arcs cutting each other in... | |
 | William Minifie - Geometry, Descriptive - 1849 - 278 pages
...knowing this simple rule. PROBLEM 12. FIG. 4. To Trisect a Right Angle. 1st. From the angular point V with any radius, describe an arc cutting the sides of the angle, as in X and W. 2nd. With the same radius from the points X and W, cut the arc in Y and Z. 3rd. Draw... | |
 | Richard Burchett - 1855 - 164 pages
...line A c, and the angle is bisected. FIG. 63. To trisect a Right Angle A. From the angular point A, with any radius, describe an arc cutting the sides of the angle in a and b. From a and b, with the same radius, cut off the arcs с ала. d. • FIG. 64. To find the... | |
 | J. F. H. de Rheims - Geometrical drawing - 1865 - 336 pages
...enable to divide given lines according to any given ratio. 8. To bisect a given angle, CAB. (Euc. 8, I.) From A as a centre, with any radius, describe an arc cutting AB and AC in D and E. From D and E aa centres, describe arcs intersecting in G, draw AG the bisecting... | |
 | Ellis A. Davidson - Mechanical drawing - 1869 - 140 pages
...triangle o. To construct on the given line DE an Angle similar to the angle ABC. (Fig. 18.) Fig. 1 From B, with any radius, describe an arc cutting the sides of the angle in c d. From E, with the same radius, describe an arc cutting ED in F. Measure the length from point c... | |
 | Technical educator - 1871 - 858 pages
...(Figs. 13 and 14). — At A construct an angle «imilm- to the angle H ca — viz., j A i. From B, with any radius, describe an arc cutting the sides of the angle in-.'. From E, with the same radius, describe an arc, cutting ED in F. Measure the length from point c to... | |
 | William Frothingham Bradbury - Geometry - 1872 - 88 pages
...cutting В С in H; join AH and produce it to / ; as AF = FE, A 11= HI (II. 16). 62 i At the vertex A as a centre with any radius describe an arc cutting the sides in В and C; with the same radius with В and С respectively as centres describe arcs cutting the... | |
 | William Alexander Myers - Circle-squaring - 1873 - 238 pages
...knowing this simple rule. PROBLEM 12, FIGURE 4. To Trisect an Angle. 1st. From the angular point V, with any radius, describe an arc cutting the sides of the angle, as in X and W. 2nd. With the same radius, from the points X and W, cut the arc in Fand Z. 3rd. Draw... | |
 | William Alexander Myers - Circle-squaring - 1874 - 207 pages
...knowing this simple rule. PROBLEM 12, FIGURE 4. To Trisect an Angle. 1st. From the angular point F, with any radius, describe an arc cutting the sides of the angle, as in JTand W. 2nd. With the same radius, from the points X and TF, cut the arc in Fand Z. 3rd. Draw... | |
 | John Courtney (boilermaker.) - 1880 - 170 pages
...bisect an angle. — That is, to divide it in two equal angles. On the point of the \ angle, A, Fig. 32, as a centre, \ with any radius, describe an arc \ cutting the sides of the angle at D and E, and on D and E as centres, describe two arcs cutting each other \0 F Fig 32. •«^ C at... | |
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Most good practical workmen have several means for getting the cut of the mitre, and to them this demonstration will appear unnecessary, but I have seen many men make sad blunders, for want of knowing this simple rule. PROBLEM 12. 
