Which expression gives the length of qr in the triangle shown below?

Answer-

Solution-

As given that m∠S = 90°, so triangle QSR is right angle triangle.

Pythagoras Theorem-

It states that the square of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the other two sides.

i.e

i.e

Putting the values,

there is no image attacted

the answer is two. hope this !