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" Through a given point to draw a line parallel to a given straight line. Let C be the given point, and AB the given line. "
A course of geometrical drawing - Page 12
by William Schofield Binns - 1861
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A Manual of Topographical Drawing

Richard Somers Smith - Topographical drawing - 1879 - 124 pages
...and APD, PD AP, PD AP or — GB ~ AG PK ~ AP - BR. whence „_ PK xAP 10.5 x 8 .,, PD = PKOBLEM YII. Through a given point to draw a line parallel to a given line. Let AB (Fig. 56) be the given line, and C the given point. If the projection and scale of slope...
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An Elementary Geometry: Plane, Solid and Spherical

William Frothingham Bradbury - Geometry - 1880 - 260 pages
...E, describe an arc cutting the arc FG. Draw AG. The angle A = C (III. 12; III. 11). PROBLEM VI. 6. Through a given point to draw a line parallel to a given straight line. Let C be the given point, and AB the given line. From C draw a line CD to AB; at C in the line DC make...
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Practical plane geometry and projection. [2 issues].

Henry Angel - 1880 - 360 pages
...elevations of each of the two given lines. If so, they do meet at the height determined. PROBLEM CCLIX. Through a given point <-, to draw a line parallel to a given line db. (Fig. 175.) The projecting planes of parallel lines are themselves parallel, hence their intersections...
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Practical solid geometry; or, Orthographic and isometric projection

Joseph Payne (of the Charterhouse.) - Geometry, Solid - 1881 - 234 pages
...plane must be as far apart, and parallel to, those in the given plane (p. 129). PROBLEM CXXIX. — Through a given point to draw a line parallel to a given plane, but possessing a proposed inclination. Through the given point pass a plane parallel to the...
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How to draw machinery

Ellis A. Davidson - Geometrical drawing - 1882 - 122 pages
...radius describe an arc cut A c in A. Join A C. This will be the perpendicular required. FtG. 7. — Through a given point to draw a line parallel to a given lint.— Let C be the given point, and AB the given line. Take any point c in A B. From c as centre,...
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Essentials of Geometry

Alfred Hix Welsh - Geometry - 1883 - 326 pages
...G; draw C G. GCH is the required angle. For, EF — GH; .-. EF = GH; .: GCH = A. QEF PROBLEM VIII. Through a given point, to draw a line parallel to a given line. Let C be the given point, and AB the given line. E / Through C draw any straight line, as ED;...
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Text-book on practical solid or descriptive geometry, Part 1

David Allan Low - Geometry, Descriptive - 1884 - 142 pages
...and when 8 + <j> = 90C the projections of the line are perpendicular to the ground line. PfiOBLEM 27. Through a given point to draw a line parallel to a given line. The projections of the required line must pass through the projections of the given point ; and...
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Text-book on practical solid or descriptive geometry, Part 2

David Allan Low - 1884 - 178 pages
...contains the given point. PROBLEM 122. To determine a tangent plane to a given cylinder which shall l,e parallel to a given straight line. Let AB be the given line. From any point, C, in AB draw CD parallel to the generatrices of the cylinder, and determine the traces...
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Elements of Plane and Solid Geometry

George Albert Wentworth - Geometry - 1885 - 424 pages
...subtend equal A at the centre). PROPOSITION XXIX. PROBLEM. 227. Through a given point to draw a straight line parallel to a given straight line. Let AB be the given line, and H the given point. It is required to draw through the point H a line II to the line A B. Draw HA, making...
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A Manual of Topographical Drawing

Richard Somers Smith - Topographical drawing - 1885 - 174 pages
...reference we have, since the reference of D is zero, whence, PD = Z = - = 8x~ = 25.45 yards. 3 i . 1 PROBLEM 5. Through a given point to draw a line parallel to a given line. It is evident, from the definitions already given, that two lines will be parallel when their...
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