Math Is Fun Forum

tony123

Member

Registered: 2007-08-03

Posts: 229

In an acute-angled

In an acute-angled triangle ABC, a tangent is drawn to the inscribed circle, parallel to side BC. The tangent intersects side AC at point D. F is the orthogonal projection of point D onto the side BC. Show that AB=AD+BF

Bob

Administrator

Registered: 2010-06-20

Posts: 10,619

Re: In an acute-angled

hi tony123

Thanks for another interesting puzzle.

Bob

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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