My "geometry English" is not good so I hope you can understand from picture. I need to prove that EFGH is tangential. Angles DHS,DGS,CFS,AES are right angles. Thanks.
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Originally Posted by kicma My "geometry English" is not good so I hope you can understand from picture. I need to prove that EFGH is tangential. Angles DHS,DGS,CFS,AES are right angles. Thanks. Hello, I don't understand what is meant by your drawing. I've attached a sekant-tangent-quadrilateral: Please tell us which point is your point S: The crosspoint of the red sekants or the midpoint of the inner circle $\displaystyle k_i$?
Hi, I think I understand your question. Here's a solution:
Last edited by johng; Apr 18th 2014 at 01:01 PM.
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