The Total solution for NCERT class 6-12
D and E are points onsides AB and AC respectively of ΔABC such that
ar(DBC) = ar (EBC). Prove that DE || BC.
Since ΔBCE and ΔBCD arelying on a common base BC and also have equal areas, ΔBCE and ΔBCD will liebetween the same parallel lines.
∴ DE || BC