Machinists' and draftsmen's handbook, containing tables, rules and formulas, with numerous examples explaining the principles of mathematics and mechanics as applied to the mechanical trades; intended as a reference book for all interested in mechanical work (1910)
Lobben, Peder, 1858- · New York, D. Van Nostrand company · leaf 205
To draw a protractor with a division of 5°. (See Fig. 10). Construct an angle of exactly 90 degrees, divide the arc intonine equal parts, then each part is 10c; divide each part intotwo equal parts and each is 5°. Prove that the sum of the three angles in a triangle consistsof 180°. (See Fig.…
Mechanical engineering
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
