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#1 2017-03-24 08:35:07

adpqadpq
Member
Registered: 2017-02-03
Posts: 18

Geo help please

In triangle

,
,
is the midpoint of
,
is the foot of the perpendicular from
to
, and
is the midpoint of
. Prove that
is perpendicular to
.

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#2 2017-03-24 21:06:12

Bob
Administrator
Registered: 2010-06-20
Posts: 10,059

Re: Geo help please

This has appeared before but I cannot find it at the moment.  So I guess I'll have to re-work it. 

LATER EDIT: Had a brain-wave about how to search for it and here it is (many solutions)

http://www.mathisfunforum.com/viewtopic.php?id=20628

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  …………….Bob smile

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