If the length of the diagonal of a square is 20 cm, then its perimeter must be-

  1. 40√2 cm
  2. 40 cm
  3. 200  cm
  4. 10√2 cm
Anurag Mishra Professor Asked on 17th January 2016 in Maths.
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  • 1 Answer(s)

    Answer: (1) 40 sqrt.2 cm 

    Anurag Mishra Professor Answered on 17th January 2016.
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