Regular polygons and the golden section - Djura Paunić and Paul Yiu Given an isosceles triangle and its circumcircle, we construct a chord parallel to the base so that the endpoints and the intersections with the other two sides of the triangle are divided in the golden ratio. This generalizes results of Hagge and Odom for equilateral triangles, and Tran for a "half-square". We apply this construction to an isosceles triangle formed by two consecutive sides of a regular n-gon. ✪ ✪ ✪ ✪ ✪ Link tải tài liệu: LINK TẢI TÀI LIỆU Theo LTTK Education
