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 126
28. Problem 146. Another method. Let ABC be the given triangle. Convert it into an isosceles triangle (Prob. 124). Drawthe line DE perpendicular toAB (Prob. 5). On the base ABconstruct the equilateral triangleABH (Prob. 16). Bisect DEin G (Prob. 1). With G ascentre, and GD as radius, drawthe… … 229. Peoblem 147, To divide a given triangle ABC into th7ee equal divisions hj linesjiarallel to one of its sides. Bisect one side, CB for example, in the point G (Prob. 1). io6 PRACTICAL PLANE GEOMETRY AVith G as centre, and GB as radius, draw the semicircle CFHB. -^ F Trisect the line CB in D and…
Geometrical drawing
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