D is the midpoint of base BC. DE and DF are perpendiculars to AB and AC respectively such that DE=DF. Prove that angle B=angle C

D is the midpoint of base BC. DE and DF are perpendiculars to AB and A

1.	D is the midpoint of base BC. DE and DF are perpendiculars to AB and AC respectively such that DE=DF. Prove that angle B=angle C
Answer» D is the midpoint of base BC. DE and DF are perpendiculars to AB and AC respectively such that DE=DF. Prove that angle B=angle C