Wentworth, G. A. (George Albert), 1835-1906 · Boston, Ginn & company · leaf 196
Fig. 18. Exercise I. 1. Required the area of a triangular field whose sides arerespectively 13, 14, and 15 chains. 2. Required the area of a triangular field whose sides arerespectively 20, 30, and 40 chains. 3. Required the area of a triangular field whose base is12.60 chains, and altitude 6.40…
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