Question

ABCD is a rectangle having length (x + 1) and

breadth (x – 1). If P, Q, R and S are the mid-points

of sides AB, BC, CD and DA respectively, then the

perimeter of quadrilateral PQRS is

Answer 1

half sides ho jaegi (x-1)/2 and (X+1)/2
fir in dono ka square karke add karde
Pythagoras theorem se hypotenuse aàyegi usko 4se multiply karde u will get answer
$4 \sqrt{ \frac{ {x}^{2} + 1 }{2} }$
hope it helps