A practical course in mechanical drawing for individual study and shop classes, trade and high schools (1912)
Willard, William Franklin, 1879- · Chicago : Popular mechanics company · leaf 28
Fig. 14 greater or smaller than AB proceed as in the problemabove. Are all the angles equal? What is their sum?Fig. 15. Exercise 14.—The vertex angle of an isosceles tri-angle is 150°, and its base is 3 inches long. Withoutprotractor make a drawing. The trilium is an early … Fig. 15 26 A PRACTICAL COURSE IN spring flower shaped on the order of an isosceles tri-angle. Exercise 13.—Scalene triangle. Base 2;^ inches,and base angles 22y2° and 37/4° respectively. Whatis the sum of the angles? Of any triangle? Fig. 16. Exercise 16.—Inscribe a square within a 3 inchcircle.…
Mechanical drawing
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