Elementary course in woodwork ; designed for use in high and technical schools, with one hundred and thirty-four illustrations, by George Alexander Ross (1901)
Ross, George Alexander · Chicago, New York, A. Flanagan Company · leaf 65
there being 180 ELEMENTARY COURSE IN WOODWORK. 61 degrees in the sum of the three angles; one of the anglesis a right angle (90 degrees), which we subtract from180 degrees; the remainder divided by two will givethe number of degrees contained in the angle at theends of the brace. The lines at the… … and a rule, and find the length of the brace by apply-ing the rule to the square as shown in Fig. 77. Onthe short leg of the square will be found a brace meas-ure which gives the length of the sides of the triangleand the length of the brace, thus, S=76.31. Bevels and tapers are found by applying…
Woodwork (Manual training)
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