Σάββατο 27 Μαΐου 2023

GEORGE L. GIBSON (Publisher)

LETTER

BOOK


David Blatner, The Joy of π. Walker Publishing Company, Inc. 1997

Mail Antreas P. Hatzipolakis

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CYCLOLOGIC

Let ABC be a triangle Denote 1. Oa, Ob, Oc = the circumcenters of HBC, HCA, HAB, resp. ABC, OaObOc are cyclologic, since Oa, Ob, Oc...