Yff triangles

The second Yff triangle is the Cevian triangle Δ A' B' C' of the second Yff point. The area of the second Yff triangle is Δ = u^3/(2R), where R is the circumradius of the reference triangle. This is the same area as the first Yff triangle.

first Yff triangle | Yff central triangle | Yff contact triangle | Yff points