Given data:
The given triangle.
If G is the incentre of the given circle then,
GD=GE=GF
In triangle GDC.

It means GD=GE=GF=12.
In triangle BEG.
![\begin{gathered} BE^2+GE^2=BG^2 \\ 6^2+12^2=BG^2 \\ BG^2=180 \\ BG=\sqrt[]{180} \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/5ddog4raeny526s8fffgg6ofx93wzgtm0p.png)
In triangle FGC.

Similarly BF=6, as triangle BEG is congruent ot the triangle BFG.
Thus, GD=12, BG=(180)^(1/2), FC=35, and BF=6.