for the one i circled do i find the hypotenuse or leg? pls help. i don’t need the answer i just need to know whether or not to solve for either the hypotenuse or leg. thanks.

Zack notices that segment nm and segment pq are congruent in the image below: which step could him determine if δnmo ≅δpqr by sas? (5 points) segment mo ≅ segment qr segment on ≅ segment qp ∠ n ≅ ∠ r ∠ o ≅ ∠ q