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 223
the walls. Solution. (1) Let ABCD be the room, and GFEH the strip ofcarpet. (2) Let *=EC=AG, and y= CF = AH. (3) Then, by similar triangles, 40—x : 30—y :: y : x. (4) Or, 40*—*2 = 30?/—y* . (1). (5) We also have *2+i/2=32, or*=V(9-:y2) • • (2), (6) Substituting in (1) and reducing,… … PROBLEM 413. What is the area of a path 1 yard wide, passing diagonally acrossa lot 20 rd. wide and 30 rd. long, the diagonal of the lot passingthrough the middle of the path? MENSURA TION. 209
Arithmetic · Geometry
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