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 139
Fig. 3. equal to the triangle BCD. Take away the common triangle COD,and there remains the triangle .40/? equal to the triangles BOGami 2?0D. Therefore the triangle BOD is equal to the differenceof the triangles AOB and BOG. Further, in Fig. 4 the triangles y(02> and COD are togetherequal to the…
Geometry
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