1.

ABCD is a rectangle having length (x + 1) andbreadth (x – 1). If P, Q, R and S are the mid-pointsof sides AB, BC, CD and DA respectively, then theperimeter of quadrilateral PQRS is

Answer»

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



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