In Triangle ABC, D,E, F, the mid points of the sides are BC,CA, AB respectively. If the area of ABC is 20 cm square, what is the area of DEF?
A circle is inscribed in equilateral triangle ABC such that point D lies on t AC, point E on AB  and point F on BC. If line segment AB=6, what is the area of the figure created by the line segments AD, AE and minor arc DE?