2017-05-27T14:37:58ZFluxBBhttp://www.mathisfunforum.com/viewtopic.php?id=23942Hey,I've been revising for my math semester paper and I have just come across a problem I can't solve : Prove that in the triangle ABC,IH || BC <=>,where I is the center of the incircle and H is the orthocenter]]>http://www.mathisfunforum.com/profile.php?id=2134112017-05-27T14:37:58Zhttp://www.mathisfunforum.com/viewtopic.php?pid=399655#p399655