A complete and practical solution book for the common school teacher (1899)
Fairchild, J[ohn] T[heodore] [from old catalog] · Crawfis College, Ohio, The author · leaf 219
FIG. 84. PROBLEM 405. If the square ABCD has 40 acres in it, find the distance from C toa point & the distance from B to A, as F. 204 FAIRCHILDS SOLUTION BOOK. (1)(2)(3)(4) Solution.BD2=40 acres, or 6400 sq. rd.AB = V6400=80 rd. FB iof 80rd. = 16rd. Now, as FCB is a right-angled tri angle, FC=… … FIG. 85. From a point in the side and 8 ch. from the corner of a square fieldcontaining- 40 A., a line is run, cutting- off 19| A.: how long is the line? [R. H. A.) Solution. (1) Let ABCD be the squarefield, and P the point 8ch. from D. (2) (3) (4) Draw PE parallel to DC,PF cutting off 19i A.above…
Arithmetic · Geometry
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