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 209
BD = (24x2)-=-10=48in. (8) Hence, the chord is 96 in., and one of the tangents 8 in. PROBLEM 390.A horse is tethered to one corner of a barn 40 ft. square, by a rope100 ft. long: over how much ground can he graze? Solution. (1) Let ADCO be the barn, and OF the rope 100 ft. long. (2) The area of… … 24.63ft.2+2)=DL=17.41 FIG. The area included inDKGL has been grazedtwice, hence its area mustbe taken from the areaalready found. (6) DP=DS=20 ft. (7) HG = OD=40V2,or56.56. (8) AH=|OD = HD=28.28ft (9) AG=CG=60 ft.(10) (ID (12) V(24.632+2)=DL = 17.41 ft., side of square KL, and its area is 17.412…
Arithmetic · Geometry
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