Answer:
Option b . 3
Explanation:
A/c midpoint theorem:- The line segment joining mid-points of two sides of a triangle is parallel to the third side of the triangle and is half of it”
since, BC//PQ and point P and Q is midpoint of side AB and AC respectively
So, using midpoint theorem concept .
We can say that PQ = BC/2 = 6/2 = 3
since option b . 3 is correct answer