According to the meaning of the question, DC//AB

Therefore, DCE angle = BEC angle.

Angle CDB= angle DBE

Therefore, triangle DFC is equal to triangle EBF.

The DC ratio EB is equal to 1 ratio 2.

So, s triangle DFC=4S triangle BFE.

And s triangle DCB= 1/2*72=32cm2.

That is, s triangle DFC+S triangle ECB=32cm2.

Similarly, s triangle EFB+S triangle BCF= 18cm2.

And s triangle DFC=4S triangle EFB.

So 4S triangle EFB+S triangle BCF=36cm2.

So the 3S triangle EFB= 18cm2.

S triangle EFB=6cm2

No symbols, please forgive me.