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The Feuerbach Point
Author:
Steve Phelps
Construct the incircle and the three excircles of a triangle. The nine-point circle is tangent to all four circles. The point of tangency of the nine-point circle and the incircle is the Feuerbach Point.
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ဗက်တာစနစ်ဖြင့် ကျန်အမှတ်ကိုရှာခြင်း
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