37. Exemplar Exercise Problems XXIII

In the figure $\triangle ABC$ has sides $AB = 7.5 cm$, $AC = 6.5 cm$ and $BC = 7 cm$. On base $BC$ a parallelogram $DBCE$ of same area as that of $\triangle ABC$ is constructed. Find the height $DF$ of the parallelogram

 

 

Ans: $cm$