MHB Is the Midpoint of HE the Center of the Inscribed Circle in Triangle HBC?

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The discussion revolves around proving that the midpoint of segment HE is the center of the inscribed circle of triangle HBC, where H is the orthocenter of triangle ABC, which has an inscribed circle (O;R). Participants seek clarification on terminology, specifically the meaning of "sharp triangle" and the definition of circle (E;r) that is tangent to sides HB and HC as well as the incircle (O;R). The proof requires understanding the geometric relationships and properties of tangents and inscribed circles. The conversation highlights the need for clear definitions to facilitate the proof process. Overall, the focus remains on the geometric properties related to triangle HBC and its inscribed circle.
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Let sharp triangle ABC inscribed circle $(O;R)$ and $H$ is orthocenter of triangle ABC. circle $(E;r)$ tangent to $HB$, $HC$ and tangent to in circle $(O;R)$.
Prove that: midpoint of $HE$ is center of the circle inscribed the triangle $HBC$
 
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max said:
Let sharp triangle ABC inscribed circle $(O;R)$ and $H$ is orthocenter of triangle ABC. circle $(E;r)$ tangent to $HB$, $HC$ and tangent to in circle $(O;R)$.
Prove that: midpoint of $HE$ is center of the circle inscribed the triangle $HBC$

Hi max, :)

I am not understanding your question correctly. What is a "sharp triangle"? And what is circle $(E;r)$ ?
 
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