Please use this identifier to cite or link to this item:
https://dspace.ctu.edu.vn/jspui/handle/123456789/64211
Title: | Problems in this isue |
Keywords: | Math Secondary school |
Issue Date: | 2021 |
Series/Report no.: | Tạp chí Toán học & Tuổi trẻ;Số 529 .- Tr.20,42 |
Abstract: | Problem T12/529. Given a triangle ABC inscribed in a circle (O). The points X, Y belong to (O) so that AX // BC, BY // AC. Let Z, T respectively be the intersections between XY and AC, BC. Let O₁, O₂, O₃, O₄ respectively be the circumcenters of the triangles AXZ, BYT, CYT, CXZ. Show that O₁O₂O₃O₄ is a parallelogram. Translated by Nguyen Phu Hoang Lan (College of Science - Vietnam National University. Hanoi) |
URI: | https://dspace.ctu.edu.vn/jspui/handle/123456789/64211 |
ISSN: | 2734-9284 |
Appears in Collections: | Toán học và tuổi trẻ |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
_file_ Restricted Access | 416.24 kB | Adobe PDF | ||
Your IP: 3.133.126.199 |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.