International Correspondence Schools · Scranton, The Colliery engineer company · leaf 80
g. 99.Let cd be the given line (shown at the left-hand side). Placeone of the shorter edges, as ab, of the triangle B so that it willcoincide Avith the line cd; then, keeping the triangle in thisposition, place the triangle A so that its long edge will comeagainst the long edge of B. Now, holding A… … Fig. 99. show the position of the triangle B when moved along theedge of ^4. 135. The right-hand portion of Fig. 99 shows anothermethod of accomplishing the same result, and illustrates howthe triangles may be used for drawing a rectangular figure,when the sides of the figure make an angle with the…
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