Exercises on Euclid and in modern geometry for the use of schools, private students, and junior university students (1881)
McDowell, James L · Cambridge, Deighton, Bell, and Co. · leaf 83
thesame straight lines. Join. AD. Theangles ABO and DCO opposite thecorresponding sides AO and DO areequal, therefore (51) the circle aboutthe triangle ABJD will pass throughC, and therefore (III. 35) the rect-angle AO.OC equals the rectangleBO. OD. Q. E. D. 80. If two triangles hare the three… … 81.] AND IN MODERN GEOMETRY. 55 Let ABC and DEF be two triangles, having the rectanglesAB.DF and A(\J)h\ AC.FE and CB.DF, CB .ED and 7>U . FE equal; then shall the angles A, B, G be respectively equalto the angles D, E, F. Draw AG and CG making the angles GAC and tfZMF, 4CG and DFE equal.…
Geometry
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