23. Calculate the area of the shaded region

Find the area of the shaded region using the figure given below.

 

 

Here, $\triangle ABC$ is an equilateral triangle with sides of 11.8 $cm$. $D$, $E$ and $F$ are the mid-points of $BC$, $AC$ and $AB$ respectively. [Use $\pi$ $=$ $3.14$]

 

The area of the shaded region $=$ 111.59101.155.7492.37 $cm$