Answer with explanation:
It is given that,
R ST ≅ M NO.
Also, MN=6 unit
NO=7 Unit
MO=11 unit.
When two triangles are congruent , their corresponding Sides and Angles are Congruent, that is equal.
So,Corresponding Side to MN is RS .
So, MN=RS
MN=6 unit
RS=6 unit