5. D, E and F are respectively the mid-points of the sides
BC, CA and AB of a .d ABC. Show that
(i) BDEF is a parallel,ogram (ii) ar(])EFJ = anABCJ
(iii) ar(BDEFJ = !_ar(ABCJ.
5. D, E and F are respectively the mid-points of the sides
BC, CA and AB of a .d ABC. Show that
(i) BDEF is a parallel,ogram (ii) ar(])EFJ = anABCJ
(iii) ar(BDEFJ = !_ar(ABCJ.