Answers

2015-03-10T07:01:32+05:30
Given-
d is the m.p. of AB & e is the m.p. of AC
according to  mid point theorem de is ll to BC and 1/2 of it
so, de= 1/2*BC
 (:-:) -------------------------hope this helps--------------------------- (:-:)
2 5 2
2015-03-10T14:59:05+05:30
According to the midpoint theorem,
The line segment joining midpoints of any two sides of a triangle is always parallel to it and also half of it. 

Since, D and E are the midpoints of AB and AC 
Therefore, DE || BC and also DE = 1/2 BC
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