Mikko's theorems on heksagram in triangle
You can move point A, B and C. Points D and E divide AB in ratio u : 1 - 2u : u. The same happens in BC and CA with points F, G, H, and I.
You can see that the ratios t/h etc. remain constant if you move point A, B and C.
Read more at https://mikkorahikka.blog/2025/08/21/mikon-kuusikulmio-kolmiossa-lauseet/