First principles of mechanical and engineering drawing (1897)
Holt-Butterfill, H · London : Chapman & Hall · leaf 46
ftp $9. 34 MECHANICAL AND ENGINEERING DRAWING Problem 21 (Fig. 69).—To construct a reyular octayon, with a given lenyth of side. Here 360° -f 8 = 45°; and 180° - 45° - 135°. Let AB be thegiven side. Produce it in both directions, and at A and B draw linesAE, BF, of the same length as AB, and making…
Mechanical drawing
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