A treatise on surveying and navigation: uniting the theoretical, practical, and educational features of these subjects (1857)
Robinson, Horatio N[elson], 1806-1867. [from old catalog] · Cincinnati, J. Ernst; Toledo, Anderson, Burr, & co. · leaf 80
r segment. These principles and rules are sufficient tosolve the following examples which are given merely as educationalExercises. 1. What is the area of a circle whose diameter is 10 ? Ans. 78.54. 2. What is the area of a circle whose diameter is 20 ? Ans. 4 times 78.54. 3. What is the area of a… … 78 SURVEYING. 6. Find the length of an arc of 60°, the radius being 18 feet. Ans. 18.846 7. To find the length of an arc of 30 degrees, the radius being 9feet. Ans. 4.7115. 8. To find the length of an arc of 12° 10, or 12% the radiusbeing 10 feet. Ans. 2.1231. 9. What is the area of a circular…
Surveying · Navigation
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