 | George Albert Wentworth - 1896 - 104 pages
...protractors have an arm which carries a vernier, by which angles may be constructed to single minutes. To draw through a given point a line parallel to a given line, make one of the sides of a triangle coincide with the given line, and, placing a ruler against one... | |
 | George Albert Wentworth - Logarithms - 1897 - 384 pages
...protractors have an arm which carries a vernier, by which angles may be constructed to single minutes. To draw through a given point a line parallel to a given line, make one of the sides of a triangle coincide with the given line, and, placing a ruler against one... | |
 | Arthur A. Dodd, B. Thomas Chace - Geometry - 1898 - 490 pages
...III. What is the sum of Z 5 and Z 6? of Z 4 and Z 6? of Z 3 and Z 5? 72. PROPOSITION XXVI. Problem. To draw through a given point a line parallel to a given line. [Use § 68.] EXERCISE. 34. Draw through the vertex of a Д a line parallel to the base, 73. PROPOSITION... | |
 | George Albert Wentworth, George Anthony Hill - Geometry - 1901 - 168 pages
...the arc LM at N. Draw CN. Then the angle BCN is the angle required. A o LB FIG. 108. 62. Problem 9. To draw through a given point a line parallel to a given straight line. Let AB (Fig. 109) be the given straight line and C the given point. Join C to any point... | |
 | American School (Chicago, Ill.) - Engineering - 1903 - 414 pages
...The angles are equal because with equal radii equal arcs are intercepted by equal angles. PROBLEM 3. To Draw Through a Given Point a Line Parallel to a Given Line. Firxt Method. Draw the horizontal straight line A С about 3£ inches long and assume the point P about... | |
 | George Albert Wentworth - Plane trigonometry - 1903 - 384 pages
...number of degrees in the given angle, and draw a line through this point and the vertex. FIG. 30 2. To draw through a given point a line parallel to a given line with a right triangle and ruler. Make one of the sides of the triangle coincide with the given line,... | |
 | George Albert Wentworth - Surveying - 1903 - 210 pages
...number of degrees in the given angle, and draw a line through this point and the vertex. FIG. so 2. To draw through a given point a line parallel to a given line with a right triangle and ruler. Make one of the sides of the triangle coincide with the given line,... | |
 | Arthur Wesley Chase - Mechanical drawing - 1904 - 200 pages
...way, but draw along that side of the first triangle which is adjusted to the given line. PROBLEM 8. To draw through a given point, a line parallel to a given line. 2nd method. On a piece of sketch paper draw two parallel lines, and across them at any angle draw another... | |
 | Arthur Wesley Chase - Mechanical drawing - 1904 - 200 pages
...being finished. A similar course is to be followed with respect to the succeeding sheets. PROBLEM 7. To draw through a given point, a line parallel to a given line. 1st method. Parallel lines are lines which lie in the same plane and do not meet however far they are... | |
 | James Ambrose Moyer - Geometry, Descriptive - 1904 - 146 pages
...itself makes an angle of 60° with the front plane. Draw the front trace of the plane. 40. PROBLEM 12. To draw through a given point a line parallel to a given plane. Method. Draw one projection of any line, and determine its other projection so that the line... | |
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Proof. If two straight lines are cut by a third making the corresponding angles equal, the lines are parallel. 
