如图所示,在△ABC中,已知点D,E,F分别是BC,AD,CE中点,且S△ABC=4cm2,则S△BEF的值为___________.

如图所示,在△ABC中,已知点D,E,F分别是BC,AD,CE中点,且S_△_ABC=4 cm²,则S_△_BEF的值为___________.