SammyS
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That ##BC=EB## does not come from similarity of triangles. It comes from the fact that chord ##BC## and chord ##EB## each subtend inscribed angles of equal measure, namely ##\angle BDC## and ##\angle EDB## .chwala said:Kindly find my rejoinder...sorry am a bit busy had to scribble my response.
I have made use of similarity (on the diagram) as is suggested...and I still cannot see how ##BC= EB##.
Steve beat me to it !.