Four points

Geometry Level 3

The D , E , F D, E, F points divide the A B , B C , A C AB, BC, AC sides to two equal parts, as is shown on the figure below.

The T T point is on A B AB line, such that T C TC is an altitude of A B C \triangle ABC .

True or False?

There always exist a circle, which goes through all of the D , E , F , T D, E, F, T points.

False, because just sometimes exist False, because never exist True

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1 solution

Ahmad Saad
Jul 12, 2017

It's not really a proof it always exists. Is there a proof you can give?

Peter van der Linden - 3 years, 11 months ago

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I've added a brief to my previous solution.

Ahmad Saad - 3 years, 11 months ago

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