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Problem: Surveying Mathematics: TrigonometryIn an equilateral triangle, what is the since of half of any one of the interior angles?
This is problem 12(1-8) from the new second edition of 1001 Solved Surveying Problems by Jan Van Sickle. Reprinted with permission from 1001 Solved Surveying Problems by Jan Van Sickle (1997, 728 pp., Professional Publications Inc.). For details on this and other FLS exam-prep books, call 800/426-1178 or visit www.ppi2pass.com.