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 210
y the horse. PROBLEM 392. The distance over a mountain is 2 miles; the horizontal distance,through, is 1 mile: how many more pickets would be required to builda fence over than through, the pickets to be set perpendicular to thehorizon in each case, supposing 1200 pickets are required to build… … FIG. 196 FAIRCHILDS SOLUTION BOOK. V. ELLIPSE. 93. An Ellipse is a plane curve of such a form that if fromany point in it two straight lines be drawn to two given fixedpoints, the sum of these straight lines will always be the same. 94. These two fixed points are called the foci. Practically, a…
Arithmetic · Geometry
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