Gergonne meets Sangaku - Paris Pamfilos In this article we discuss the relation of some hyperbolas, naturally associated with the Gergonne point of a triangle, with the construction of two equal circles known from a Sangaku problem at the temple of Chiba. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education