The proof is shown below:
<h3>What is Mid point theorem?</h3>
The line segment joining the mid points of any two sides of a triangle is parallel to the third side.
△ABC in which D and E are the mid points of AB and AC,.
If D and E are the mid points of AB and AC,
then AD=DB and AE=EC.
Thus,
AD/DB = AE/ EC
by the converse of Thales theorem, DE∥BC.
As, by theorem we can say that DE∥BC.
So, there is no other side parallel to DE.
Learn more about mid point theorem here:
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