By Roger A. Johnson
The writer makes liberal use of round inversion, the speculation of pole and polar, and plenty of different glossy and strong geometrical instruments in the course of the publication. specifically, the strategy of "directed angles" deals not just a strong approach to evidence but additionally furnishes the shortest and such a lot based kind of assertion for a number of universal theorems. This available textual content calls for not more vast education than highschool geometry and trigonometry.
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Advanced Euclidean Geometry (Dover Books on Mathematics) by Roger A. Johnson