 | John Nicholson (Civil engineer) - Building - 1830 - 240 pages
...Take 60° from the line of chords, in the compasses, and setting one at the angular point B, Prob. 4, with that opening as a radius, describe an arch, as...Through a given point C, to draw a line parallel to a given line AB. Case 1. Take any point d, in AB ; upon d and C, with the distance C d, describe two... | |
 | Edward Shaw - Architecture - 1832 - 402 pages
...points ed, draw the lines B e, B d, and they will trisect the angle, as was required. PROBLEM VII. Through a given point C, to draw a line parallel to a given line, A B. 1. Take any point d, in AB, upon d and C, with the distance С d, describe two arcs... | |
 | Luke Hebert - Industrial arts - 1835 - 816 pages
...60° from the line of chords, in the compasses, and setting one at the angular point B, PROB. IV., with that opening as a radius, describe an arch, as...it from b to a, then is a B b the angle required. Fig. 4. Fig. 5. Fig. 6. PROBLEM VII. — Through a given point C, to draw a line parallel to a given... | |
 | Luke Hebert - Industrial arts - 1836 - 814 pages
...60° from the line of chords, in the compasses, and setting one at the angular point B, PROB. IV., with that opening as a radius, describe an arch, as...which you intend the angle to be, and set it from 6 to a, then is o B 6 the angle required. Fig. 4. Fig. в. Pr.oBLEM VII. — Through a given point... | |
 | Edward Shaw - Architecture - 1836 - 438 pages
...points ed, draw the lines В е, В d, and they will trisect the angle, as was required. PROBLEM vn. Through a given point, C, to draw a line parallel to a given line, A B. 1. Take any point d, in AB, upon d and C, with the distance С d, describe two arcs... | |
 | Anna Cabot Lowell - Geometry - 1846 - 216 pages
...AB, describe an arc which will intersect the former at the point E. Draw EC. The angle BCD = AOB. 67. Through a given point C, to draw a line parallel to a given line AB, (fig. 61.) Sol. 1. From the point C let fall upon AB the perpendicular DC. Upon DC at... | |
 | Edward Shaw - Architecture - 1852 - 426 pages
...points ed draw the Unes B e, B d, and they will trisect the angle, as was required. ' PROBLEM VII. Through a given point, C, to draw a line parallel to a given line, A B. 1. Take any point d, in AB, upon d and C, with the distance С d, describe two arcs,... | |
 | Olinthus Gregory - 1863 - 482 pages
...the line di : it will be perpendicular to ab, and will bisect it in i. the ooint required. PROB. 2. Through a given point, c, to draw a line parallel to a given line A B. Place one of the sides of the triangle in contact with the line A B. Lay the ruler... | |
 | Auguste Frédéric Lendy - Military topography - 1864 - 254 pages
...with AB and AC respectively as radii, the circumferences meet at a point P, and angle PMN=AB C. (60.) Through a given point, C, to draw a line parallel to a given line, AB. In A plant a staff, measure the length of its shadow, AD, and also the lines AB, B... | |
 | J. F. H. de Rheims - Geometrical drawing - 1865 - 336 pages
...H and K. From H and K as centres, describe two arcs intersecting in L, join GL, meeting AB in M. 5. Through a given point C, to draw a line parallel to a given line AB. (Euc. 27, 1. and 27, HI.) From C as a centre, with any radius, describe the arc DE.... | |
| |
Prob. 7. Through a given point C, to draw a line parallel to a given line AB. 
