Answers

2016-03-21T13:47:08+05:30
I can only tell the ratio it is pqrs:nrmo
1:4
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2016-03-21T13:49:54+05:30
As PQRS is a square,
RN=RM  -----------------------(1)
As O is the midpoint of PR, RO=OP -----------------(2)
In triangle RNO,(by Pythagoras theorem)
NO= \sqrt{ OR^{2}- RN^{2}  }
     =OM
THUS all 4 sides are equal
it is a square
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