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 230
ribed about a circle is 40 rd.:find area of inscribed square. Solution. (1) From Fig. 100, let EFGH be the circumscribed square, and ABCD the inscribed square. (2) EH, the diagonal of the large square =40 rd. (3) Area of the large square is 402^-2 = 800 sq. rd. (4) Let OC—r, then EFHG = 4r2, and… … FIG. mi. 216 FAIRCHILDS SOLUTION BOOK. Solution. (1) Produce one side AB, till BE is equal to the shorterside of the rectangleABCD, or CB. (2) On A E as a diameter de- scribe a circle meetingBC produced at F. (3) Then will BE be the side of the square BFGH, equal to the given rectangle DB, as…
Arithmetic · Geometry
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