tag:blogger.com,1999:blog-6933544261975483399.post4516057922479369015..comments2024-03-26T19:10:02.918-07:00Comments on Go Geometry (Problem Solutions): Problem 783: Triangle, Orthocenter, Circumcenter, Circumcircle, Diameter, Altitude, MidpointAntonio Gutierrezhttp://www.blogger.com/profile/04521650748152459860noreply@blogger.comBlogger1125tag:blogger.com,1999:blog-6933544261975483399.post-17182623224580004122012-07-16T15:31:31.951-07:002012-07-16T15:31:31.951-07:00By previous problem DHBC forms a parallelogram, he...By previous problem DHBC forms a parallelogram, hence the M is the intersection of the diagonals.<br />Q.e.d.W Fungnoreply@blogger.com