A public park, in the form of a square, has an area of $(100 \pm 0.2) m ^2$. The side of park is ......... $m$
  • A$(10 \pm 0.01)$
  • B$(10 \pm 0.1)$
  • C$(10 \pm 0.02)$
  • D$(10 \pm 0.2)$
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