Hale, Joseph W. L. (Joseph Woodwell Ledwidge), 1886- · New York [etc.] McGraw-Hill book company · leaf 178
Therefore cos 40° X hyp. = 20 and from this the hyp. = 20 20 cos 40° .766 26.1 When the side A and angle a are given (Fig. 119) tofind the hypothenuse proceed as follows:
Mechanics, Applied
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