Science and art drawing : complete geometrical course ; consisting of plane and solid geometry, orthographic and isometric projection, projection of shadow's the principles of map projection, graphic arithmetic and graphic statics (1895)
Spanton, J. Humphrey (John Humphrey) · London : Macmillan · leaf 280
le till they meetthe lines forming the given angles in s and t. From s and t drawlines parallel to OB and OC till they meet at w. This is apoint on the edge A. Draw the line OA through this point. The angle A is found in precisely the same way as angle Bin Prob. 43. Peoblem 48. When one side e, its… … Fig. 63. and OB. At any point h draw the line he at right angles to 260 SOLID GEOMETRY chap. OA, and intersecting it in I. At I draw Ik, making, with le, thegiven angle A. With / as centre, and radius Ih, draw an arctill it meets Ik in k. From k draw ke perpendicular to el. Drawthe line OB through…
Geometrical drawing
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