Page:Sheet Metal Drafting.djvu/203

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TRIANGULATION OF SCALENE CONES
189

The Diagram of Triangles.—A series of short horizontal lines, Fig. 272, are drawn equal in length and numbered to correspond to

Figs. 268-273—Square to Round Transition.

the base lines of Fig. 271. Perpendiculars are erected at points 2 and 3, and the several hypotenuses are drawn in as shown.

The Pattern.—A horizontal straight line is drawn equal in