Skip to main content
14 events
when toggle format what by license comment
Oct 1, 2018 at 0:37 history edited Đào Thanh Oai
edited tags
Sep 30, 2018 at 18:51 answer added Alex timeline score: 2
Jul 10, 2018 at 13:32 history edited Đào Thanh Oai CC BY-SA 4.0
deleted 7 characters in body
Jul 10, 2018 at 13:14 history edited Đào Thanh Oai CC BY-SA 4.0
added 340 characters in body
Jul 10, 2018 at 12:41 comment added Đào Thanh Oai In more than 2300 year since Eulid written Euclid's Elements has only two famous equilateral well-known is Morely equilateral triangle and Napoleon equilateral triangle.
Jul 10, 2018 at 12:18 comment added Đào Thanh Oai In more than 20000 points of Encyclopedia of Triangle Centers don't has any triangle perspective triplet to ABC.
Jul 10, 2018 at 4:25 comment added Fan Zheng MO is not for M(athematics) O(lympiad) type problems.
Jul 10, 2018 at 0:48 history edited Đào Thanh Oai CC BY-SA 4.0
added 3 characters in body
Jun 27, 2018 at 7:00 history edited Đào Thanh Oai CC BY-SA 4.0
added 38 characters in body
Jun 27, 2018 at 3:02 history edited Đào Thanh Oai CC BY-SA 4.0
added 2 characters in body
Jun 27, 2018 at 1:46 history edited Đào Thanh Oai CC BY-SA 4.0
added 111 characters in body
Jun 27, 2018 at 1:22 history edited Đào Thanh Oai CC BY-SA 4.0
edited body
Jun 27, 2018 at 1:15 history edited Đào Thanh Oai CC BY-SA 4.0
added 2 characters in body
Jun 27, 2018 at 1:10 history asked Đào Thanh Oai CC BY-SA 4.0