Hart, C. A. (Clara Avis), b. 1863, Feldman, Daniel D., b. 1872 · New York, American Book Co · leaf 444
Given A A^B^C^ the polar oiAABC.To prove A ABC the polar of A Abc. Argument 1. A is the pole of Bc; i.e, AC is a quad- rant. 2. B is the pole of Ac; i.e. 5(7 is a quad- rant. 3. .*. C is the pole of AB, 4. Likewise b is the pole of AC, and A is the pole of BC. 5. ..A ABC is the polar of A ab^C,…
Geometry, Plane · Geometry, Solid
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