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 181
166 FAIRCHILDS SOLUTION BOOK. … FIG. 42. Solution. (1) Let SPC be the semicircle, and ABC the triangle. (2) CD is the radius of the circle, also the perpen-dicular of the triangle. (3) The area of an equilateral triangle is found bysquaring half the sideand multiplying by *J3,then we must get theside by reversing thisoperation.…
Arithmetic · Geometry
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
