Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes and company · leaf 98
es proportional are equian-gular and similar. Let BAG and EDF be twotriangles Laving BC . EF :: AB : ED,and BC : EF : : AC : DF;then will they have the corres-ponding angles equal, viz.. the angle B^E, A = D and C=F. For. at the point E make FEG equal to the angle /*,and at F make the angle EFG… … 98 G E0METH1 Proportions of T r.i angles. AC AC
Geometry · Plane trigonometry
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